Altered Ego

Altered Ego copies exactly what was printed on the original creature (unless that creature is copying something else or is a token; see below). It doesn’t copy whether that creature is tapped or untapped, whether it has any counters on it or any Auras and Equipment attached to it, or any non-copy effects that have changed its power, toughness, types, color, or so on.

Any enters-the-battlefield abilities of the copied creature will trigger when Altered Ego enters the battlefield. Any “as [this creature] enters the battlefield” or “[this creature] enters the battlefield with” abilities of the chosen creature will also work.

If Altered Ego somehow enters the battlefield at the same time as another creature, Altered Ego can’t become a copy of that creature. You may choose only a creature that’s already on the battlefield.

If the chosen creature has {X} in its mana cost, that X is considered to be 0. The value of X in Altered Ego’s last ability will be whatever value was chosen for X while casting Altered Ego.

If the chosen creature is a token, Altered Ego copies the original characteristics of that token as stated by the effect that put the token onto the battlefield. Altered Ego isn’t a token.

If the chosen creature is copying something else (for example, if the chosen creature is another Altered Ego), then your Altered Ego enters the battlefield as whatever the chosen creature copied.

If you copy a double-faced creature, Altered Ego will be a copy of the face that’s up when Altered Ego enters the battlefield. Because Altered Ego is not a double-faced card, it won’t be able to transform. If an effect instructs you to return it to the battlefield transformed when it leaves the battlefield, it won’t return and will remain in its new zone.

X can be 0. Altered Ego won’t enter with any additional +1/+1 counters, and it will just be a copy of the chosen creature.

You can choose not to copy anything. In that case, Altered Ego enters the battlefield as a 0/0 creature, and is probably put into the graveyard immediately. It won’t have +1/+1 counters placed on it by its ability.

This spell can't be countered.
You may have Altered Ego enter as a copy of any creature on the battlefield, except it enters with X additional +1/+1 counters on it.

"We pray to Avacyn on high. On snow-white wings fearless you fly. Keep safe our souls. Keep safe our lives. May angels watch us from the skies."
—Children's prayer

Always Watching

Nontoken creatures you control get +1/+1 and have vigilance.

Angel of Deliverance

Because you consider only the characteristics of a double-faced card's front face while it's not on the battlefield, the types of its back face won't be counted for delirium.

If Angel of Deliverance deals damage and is dealt lethal damage at the same time, its ability will trigger.

If Angel of Deliverance deals damage to multiple creatures, players, or planeswalkers at once (for example, if it's blocked by two smaller creatures) its last ability triggers only once.

If Angel of Deliverance deals lethal damage to a creature, that creature can't be targeted by Angel of Deliverance's triggered ability. It's already in its owner's graveyard.

If you have three noncreature card types among cards in your graveyard and Angel of Deliverance deals damage at the same time another creature you control is dealt lethal damage, the ability won't trigger. The creature doesn't die until after Angel of Deliverance's ability checks to see if it triggers.

In some rare cases, you can have a token or a copy of a spell in your graveyard at the moment that an object's delirium ability counts the card types among cards in your graveyard, before that token or copy ceases to exist. Because tokens and copies of spells are not cards, even if they are copies of cards, their types will never be counted.

Most triggered delirium abilities use an intervening "if" clause. There must be four or more card types among cards in your graveyard in order for these abilities to trigger, otherwise they never trigger at all. There's no way to have the ability trigger if there aren't enough card types, even if you intend to raise that number in response to the triggered ability. The number of card types is checked again as the trigger resolves, and if it has become too low somehow, the ability does nothing. If which card types are in your graveyard changes but the quantity of card types stays the same (or increases), then the delirium triggered ability will still resolve.

The card types in Magic are artifact, battle, creature, enchantment, instant, kindred, land, planeswalker, and sorcery. Supertypes (such as legendary and basic) and subtypes (such as Human and Equipment) are not counted.

The number of card types matters, not the number of cards. For example, Wicker Witch (an artifact creature) along with Catalog (an instant) and Chaplain's Blessing (a sorcery) will enable delirium.

Flying
Delirium — Whenever Angel of Deliverance deals damage, if there are four or more card types among cards in your graveyard, exile target creature an opponent controls.

Anguished Unmaking

If the target nonland permanent is an illegal target as Anguished Unmaking tries to resolve, it won't resolve and none of its effects will happen. You won't lose 3 life.

Exile target nonland permanent. You lose 3 life.

Sorin had created Avacyn, so it was a cruelty beyond imagining, a pain beyond description, that it fell upon him to end her forever.

"Wings that once bore hope are now stained with blood. She is our guardian no longer."
—Grete, cathar apostate

Archangel Avacyn // Avacyn, the Purifier

Archangel Avacyn’s delayed triggered ability triggers at the beginning of the next upkeep regardless of whose turn it is.

Archangel Avacyn’s delayed triggered ability won’t cause it to transform back into Archangel Avacyn if it has already transformed into Avacyn, the Purifier, perhaps because several creatures died in one turn.

For more information on double-faced cards, see the Shadows over Innistrad mechanics article (http://magic.wizards.com/en/articles/archive/feature/shadows-over-innistrad-mechanics).

Flying
When this creature transforms into Avacyn, the Purifier, it deals 3 damage to each other creature and each opponent.

Flash
Flying, vigilance
When Archangel Avacyn enters, creatures you control gain indestructible until end of turn.
When a non-Angel creature you control dies, transform Archangel Avacyn at the beginning of the next upkeep.

Arlinn Kord // Arlinn, Embraced by the Moon

Arlinn Kord is not a Werewolf card; that is, she doesn’t have the creature type Werewolf. Spells and abilities that refer to Werewolf cards or Werewolves don’t apply to Arlinn.

Arlinn, Embraced by the Moon is not a Werewolf card; that is, she doesn’t have the creature type Werewolf. Spells and abilities that refer to Werewolf cards or Werewolves don’t apply to Arlinn.

The emblem grants the activated ability to your creatures. Use the power of the creature as the activated ability resolves to determine how much damage is dealt. If the creature isn’t on the battlefield at that time, use its power as it last existed on the battlefield. Note that this works differently than the fight keyword action, which requires both creatures to be on the battlefield for any damage to be dealt.

The set of creatures affected by the first ability of Arlinn, Embraced by the Moon is determined as the ability resolves. Creatures you begin to control later in the turn won’t get +1/+1 or gain trample.

When the ability that transforms Arlinn Kord into Arlinn, Embraced by the Moon (or vice versa) resolves, the number of loyalty counters on her doesn’t change.

You can activate the first ability of Arlinn Kord without any targets just to add a loyalty counter to her.

You can’t activate Arlinn Kord’s second ability and, after she transforms, activate a loyalty ability of Arlinn, Embraced by the Moon during that turn (or vice versa).

You can control two of this permanent, one front-face up and the other back-face up, at the same time.

[+1]: Creatures you control get +1/+1 and gain trample until end of turn.
[−1]: Arlinn, Embraced by the Moon deals 3 damage to any target. Transform Arlinn, Embraced by the Moon.
[−6]: You get an emblem with "Creatures you control have haste and '{T}: This creature deals damage equal to its power to any target.'"

[+1]: Until end of turn, up to one target creature gets +2/+2 and gains vigilance and haste.
[0]: Create a 2/2 green Wolf creature token. Transform Arlinn Kord.

"The ravings of the mad are laced with eldritch knowledge."

Asylum Visitor

Asylum Visitor's triggered ability checks the active player's hand as the upkeep begins and as the trigger resolves. If that player has a card in hand as it resolves, you won't draw a card or lose 1 life. Notably, if you control multiple Asylum Visitors during your upkeep, whichever one's first ability resolves first will stop the other's first ability from having any effect unless you have a way to get the card you drew out of your hand before it resolves.

On an opponent's turn, triggered abilities you control will resolve before any triggered abilities of permanents that opponent controls if they trigger at the same time. This means that if you and your opponent each control an Asylum Visitor during your opponent's upkeep, and they have no cards in hand, you'll always draw a card before your opponent has a card in their hand.

The upkeep step is before the draw step, after the untap step. Asylum Visitor's first ability will trigger and resolve before the active player draws a card in their draw step if that player has no cards in hand.

A card with madness that's discarded counts as having been discarded even though it's put into exile rather than a graveyard. If it was discarded to pay a cost, that cost is still paid. Abilities that trigger when a card is discarded will still trigger.

A spell cast for its madness cost is put onto the stack like any other spell. It can be countered, copied, and so on. As it resolves, it's put onto the battlefield if it's a permanent card or into its owner's graveyard if it's an instant or sorcery card.

Cards are discarded in a Magic game only from a player's hand. Effects that put cards into a player's graveyard from anywhere else do not cause those cards to be discarded.

Casting a spell with madness ignores the timing rules based on the card's card type. For example, you can cast a sorcery with madness if you discard it during an opponent's turn.

If you choose not to cast a card with madness when the madness triggered ability resolves, it's put into your graveyard. Madness doesn't give you another chance to cast it later.

If you discard a card with madness to pay the cost of a spell or activated ability, that card's madness triggered ability (and the spell that card becomes, if you choose to cast it) will resolve before the spell or ability the discard paid for.

If you discard a card with madness while a spell or ability is resolving, it moves immediately to exile. Continue resolving that spell or ability, noting that the card you discarded is not in your graveyard at this time. Its madness triggered ability will be placed onto the stack once that spell or ability has completely resolved.

Madness works independently of why you're discarding the card. You could discard it to pay a cost, because a spell or ability tells you to, or because you have too many cards in your hand during your cleanup step. You can't discard a card with madness just because you want to, though.

To determine the total cost of a spell, start with the mana cost or alternative cost (such as a madness cost) you're paying, add any cost increases, then apply any cost reductions. The mana value of the spell is determined by only its mana cost, no matter what the total cost to cast that spell was.

At the beginning of each player's upkeep, if that player has no cards in hand, you draw a card and you lose 1 life.
Madness {1}{B} (If you discard this card, discard it into exile. When you do, cast it for its madness cost or put it into your graveyard.)

Avacyn's Judgment

If Avacyn's Judgment has multiple targets, and some but not all of them are illegal targets when Avacyn's Judgment resolves, Avacyn's Judgment will still deal damage to the remaining legal targets according to the original damage division.

You announce how the damage will be divided as part of casting Avacyn's Judgment. Each chosen target must receive at least 1 damage.

Madness {X}{R} (If you discard this card, discard it into exile. When you do, cast it for its madness cost or put it into your graveyard.)
Avacyn's Judgment deals 2 damage divided as you choose among any number of targets. If this spell's madness cost was paid, it deals X damage divided as you choose among those permanents and/or players instead.

There is power in the abyss, in blackness more profound than the darkest dreams.

Behold the Beyond

Discard your hand. Search your library for three cards, put them into your hand, then shuffle.

Brain in a Jar

If Brain in a Jar leaves the battlefield before its first ability resolves, use the number of counters on it at the moment it left to determine what spell you may cast. That number won’t change because you can’t put a new counter on Brain in a Jar.

If the card has {X} in its mana cost, you must choose 0 as the value of X.

If you cast a card “without paying its mana cost,” you can’t choose to cast it for any alternative costs, such as awaken costs. You can, however, pay additional costs, such as kicker costs. If the card has any mandatory additional costs, such as that of Lightning Axe, you must pay those to cast the card.

When resolving the first ability of Brain in a Jar, the newly-placed charge counter will be counted when determining what spells you may cast. No player may take any action between you placing the counter and choosing which spell to cast.

{1}, {T}: Put a charge counter on Brain in a Jar, then you may cast an instant or sorcery spell with mana value equal to the number of charge counters on Brain in a Jar from your hand without paying its mana cost.
{3}, {T}, Remove X charge counters from Brain in a Jar: Scry X.

Burn from Within

If Burn from Within doesn’t deal damage to the target creature (perhaps because that damage was prevented or X is 0), neither additional effect will apply. It won’t lose indestructible, and it won’t be exiled instead of dying that turn.

The damaged creature will be exiled if it would die for any reason that turn, not just if it dies due to damage from Burn from Within.

You can target a creature that doesn’t have indestructible with Burn from Within. It will still be exiled if it would die this turn.

Burn from Within deals X damage to any target. If a creature is dealt damage this way, it loses indestructible until end of turn. If that creature would die this turn, exile it instead.

Bygone Bishop

Casting a spell for an alternative cost, such as a madness cost, doesn't change its mana value. For example, casting Twins of Maurer Estate (a card with mana cost {4}{B} and madness cost {2}{B}) for its madness cost will not cause Bygone Bishop's ability to trigger.

If you sacrifice a Clue for another card's cost or effect, such as that of Angelic Purge or Tamiyo's Journal, you can't also pay {2} and sacrifice it to draw a card.

The token is named Clue Token and has the artifact subtype Clue. Clue isn't a creature type.

The tokens are normal artifacts. For example, they can be sacrificed to cast Angelic Purge or targeted by Root Out.

Flying
Whenever you cast a creature spell with mana value 3 or less, investigate. (Create a Clue token. It's an artifact with "{2}, Sacrifice this artifact: Draw a card.")

Choked Estuary

If an Island or Swamp is entering the battlefield from your hand at the same time as Choked Estuary, you may reveal the other land to have Choked Estuary enter untapped.

If an effect instructs you to put Choked Estuary onto the battlefield tapped, it will still enter the battlefield tapped even if you reveal a land card from your hand.

Lands don't have a subtype just because they can produce mana of the corresponding color. Choked Estuary itself is neither an Island nor a Swamp, even though it produces blue and black mana, so you can't reveal one to satisfy the ability of another.

You may reveal any land card with either or both of the appropriate subtypes. It doesn't have to be a basic land. For example, you could reveal Prairie Stream from the Battle for Zendikar set to satisfy the ability of Choked Estuary.

As Choked Estuary enters, you may reveal an Island or Swamp card from your hand. If you don't, Choked Estuary enters tapped.
{T}: Add {U} or {B}.

Confirm Suspicions

You can't cast a spell without choosing legal targets. If all of those targets become illegal, the spell doesn't resolve and you won't investigate.

Counter target spell.
Investigate three times. (To investigate, create a Clue token. It's an artifact with "{2}, Sacrifice this artifact: Draw a card.")

It is all too easy to disturb the Blessed Sleep.

Corrupted Grafstone

Colorless cards have no color, so you can't add {C} this way.

Players can't respond to mana abilities, so no player can take any action to stop you from getting the color of mana you expect to produce once you announce the ability.

Corrupted Grafstone enters tapped.
{T}: Choose a color of a card in your graveyard. Add one mana of that color.

The chant was incomprehensible, but its power was unmistakable.

Cryptolith Rite

If a creature has multiple mana abilities with a cost of {T}, such as if you control two Cryptolith Rites, you can only activate one of them at a time. Tapping the creature doesn’t produce multiple mana.

Creatures you control have "{T}: Add one mana of any color."

The old hermit would never say what he fed his mushrooms, and people learned not to ask.

Deathcap Cultivator

If you have three noncreature card types among cards in your graveyard at the time damage is dealt by Deathcap Cultivator, and lethal damage is dealt to another creature you control at the same time, the damage from Deathcap Cultivator won't be from a source with deathtouch.

{T}: Add {B} or {G}.
Delirium — Deathcap Cultivator has deathtouch as long as there are four or more card types among cards in your graveyard.

The message was clear to Sorin—Nahiri had paid Markov Manor a visit.

Declaration in Stone

A face-down creature, such as one cast with a megamorph ability from the Dragons of Tarkir set, has no name and can't share a name with any other creatures.

Declaration in Stone has only one target. The other creatures with that name aren't targeted. For example, a creature with hexproof will be exiled if it has the same name as the target creature.

If the target creature is an illegal target when Declaration in Stone tries to resolve, it won't resolve and none of its effects will happen. No creatures will be exiled, including those with the same name as the target.

It's possible to have a creature and a noncreature permanent with the same name, such as two copies of the same land, one of which has become a land creature. Only creatures with that name are exiled by Declaration in Stone.

Unless a token is a copy of another permanent or was explicitly given a name by the effect that created it, its name is the subtypes it was given when it was created plus the word "Token." For example, if an effect creates a 1/1 Soldier creature token, that token is named "Soldier Token."

Exile target creature and all other creatures its controller controls with the same name as that creature. That player investigates for each nontoken creature exiled this way.

Above the cries, a phrase rang out: "You will all be saved."

Descend upon the Sinful

If one of those creatures was enchanted, its Aura won't be put into a player's graveyard until after Descend upon the Sinful has finished resolving. If the controller of Descend upon the Sinful owned the Aura, it won't be in the graveyard in time to be counted for the delirium ability.

If you have three non-sorcery card types among cards in your graveyard at the time Descend upon the Sinful resolves, you won't get an Angel token. Descend upon the Sinful isn't put into your graveyard until after it's finished resolving.

Exile all creatures.
Delirium — Create a 4/4 white Angel creature token with flying if there are four or more card types among cards in your graveyard.

"The city is overrun. I would say burn it to the ground, but that won't be necessary."
—Inquisitor Delmund

Devils' Playground

Create four 1/1 red Devil creature tokens. They have "When this creature dies, it deals 1 damage to any target."

Diregraf Colossus

Diregraf Colossus's last ability won't trigger when you cast it because it's not on the battlefield yet.

If Diregraf Colossus enters the battlefield from your graveyard, its first ability will count itself among the Zombie cards in your graveyard. Similarly, if it enters the battlefield at the same time as another Zombie card enters the battlefield from your graveyard, the ability will count that other Zombie.

Diregraf Colossus enters with a +1/+1 counter on it for each Zombie card in your graveyard.
Whenever you cast a Zombie spell, create a tapped 2/2 black Zombie creature token.

Drogskol Cavalry

The Spirit tokens created by Drogskol Cavalry will cause its second ability to trigger, as well as any other Spirits you cast or Spirit tokens you put onto the battlefield another way.

Flying
Whenever another Spirit you control enters, you gain 2 life.
{3}{W}: Create a 1/1 white Spirit creature token with flying.

"This is it! All the cryptoliths point here!"
—Jace Beleren

Drownyard Temple

{T}: Add {C}.
{3}: Return Drownyard Temple from your graveyard to the battlefield tapped.

The barrier between existence and oblivion is thinner than you know.

Eerie Interlude

Auras attached to the exiled creatures will be put into their owners’ graveyards. Equipment attached to the exiled creatures will become unattached and remain on the battlefield. Any counters on the exiled creatures will cease to exist.

If a creature token is exiled, it ceases to exist. It won’t be returned to the battlefield.

If a double-faced card is exiled, it will return with its front face up.

Exile any number of target creatures you control. Return those cards to the battlefield under their owner's control at the beginning of the next end step.

Elusive Tormentor // Insidious Mist

Once blockers have been chosen, transforming Elusive Tormentor into Insidious Mist won’t cause it to become unblocked.

You can activate Elusive Tormentor’s ability multiple times to discard multiple cards. Only the first instance of the ability to resolve will cause it to transform.

You can, all within one turn, attack with Elusive Tormentor, transform it into Insidious Mist before blockers are chosen, transform it back as its triggered ability resolves, and have it deal 4 combat damage.

Hexproof, indestructible
Insidious Mist can't block and can't be blocked.
Whenever Insidious Mist attacks and isn't blocked, you may pay {2}{B}. If you do, transform it.

Older vampires are usually more cautious than the newly-sired, calling upon ancient magic for which neonates lack patience.

{1}, Discard a card: Transform Elusive Tormentor.

"The tides have begun to ignore the moon."
—Tamiyo's journal

Engulf the Shore

Return to their owners' hands all creatures with toughness less than or equal to the number of Islands you control.

"Is this what you found, Tamiyo?"
—Jace Beleren

Epiphany at the Drownyard

X can be 0, and piles can be empty. If X is 0, you’ll reveal one card and one pile will be empty. Your opponent may choose the empty pile to put into your hand.

Reveal the top X plus one cards of your library and separate them into two piles. An opponent chooses one of those piles. Put that pile into your hand and the other into your graveyard.

Ever After

If a targeted creature card is normally colorless, it will simply become black. It won’t be both black and colorless.

Return up to two target creature cards from your graveyard to the battlefield. Each of those creatures is a black Zombie in addition to its other colors and types. Put Ever After on the bottom of its owner's library.

Falkenrath Gorger

Falkenrath Gorger's ability only applies while it's on the battlefield. If you discard it, it won't give itself madness.

If Falkenrath Gorger leaves the battlefield before the madness trigger has resolved for a Vampire card that gained madness with its ability, the madness ability will still let you cast that Vampire card for the appropriate cost even though it no longer has madness.

If you discard a Vampire creature card that already has a madness ability, you'll choose which madness ability exiles it. You may choose either the one it normally has or the one it gains from Falkenrath Gorger.

Each Vampire creature card you own that isn't on the battlefield has madness. The madness cost is equal to its mana cost. (If you discard a card with madness, discard it into exile. When you do, cast it for its madness cost or put it into your graveyard.)

The mind can only expand so far before it flies apart.

Fevered Visions

No player may take any action in between the two steps of Fevered Visions’s triggered ability, so if your opponent has four or more cards in hand after drawing a card, Fevered Visions will deal 2 damage to that player.

At the beginning of each player's end step, that player draws a card. If the player is your opponent and has four or more cards in hand, Fevered Visions deals 2 damage to that player.

Flameblade Angel

If a source deals damage to you and/or one or more permanents you control at the same time, Flameblade Angel’s last ability will trigger that many times. For example, if a creature with trample deals damage to a blocking creature you control and you, Flameblade Angel’s ability will trigger two times.

Note that the last ability is optional. Say two players each control a Flameblade Angel, and a source controlled by the first player deals damage to the second player or a permanent they control. The resulting triggered ability may deal damage to the first player, causing the ability of that player’s Flameblade Angel to trigger. That ability may deal damage to the second player, and so on. This cycle will repeat until the game ends or one player declines to use the ability, putting an end to the carnage.

Flying
Whenever a source an opponent controls deals damage to you or a permanent you control, you may have Flameblade Angel deal 1 damage to that source's controller.

Sent to find Sorin, Jace ventured to the vampire's ancestral home, only to find evidence of a deeper mystery.

Foreboding Ruins

If a Swamp or Mountain is entering the battlefield from your hand at the same time as Forboding Ruins, you may reveal the other land to have Forboding Ruins enter untapped.

If an effect instructs you to put Forboding Ruins onto the battlefield tapped, it will still enter the battlefield tapped even if you reveal a land card from your hand.

Lands don't have a subtype just because they can produce mana of the corresponding color. Forboding Ruins itself is neither a Swamp nor a Mountain, even though it produces black and red mana, so you can't reveal one to satisfy the ability of another.

You may reveal any land card with either or both of the appropriate subtypes. It doesn't have to be a basic land. For example, you could reveal Sunken Hollow from the Battle for Zendikar set to satisfy the ability of Forboding Ruins.

As Foreboding Ruins enters, you may reveal a Swamp or Mountain card from your hand. If you don't, Foreboding Ruins enters tapped.
{T}: Add {B} or {R}.

"My earliest work escapes me."
—Stitcher Geralf

Forgotten Creation

If you cause a creature to have 0 power or less, use the actual value (which may be negative) to determine whether it can block or be blocked. A creature with skulk and 0 or less power most likely won't be blocked, but it won't deal combat damage and won't trigger any abilities that trigger when combat damage is dealt.

Skulk matters only as blockers are chosen. Modifying either creature's power after blockers are chosen won't cause the attacking creature to become unblocked.

The upkeep step is before the draw step, after the untap step. If you have no cards in hand, you can't draw for the turn and then discard that card to draw a new one because Forgotten Creation's last ability will already have triggered and resolved.

Skulk (This creature can't be blocked by creatures with greater power.)
At the beginning of your upkeep, you may discard all the cards in your hand. If you do, draw that many cards.

Fortified Village

If a Forest or Plains is entering the battlefield from your hand at the same time as Fortified Village, you may reveal the other land to have Fortified Village enter untapped.

If an effect instructs you to put Fortified Village onto the battlefield tapped, it will still enter the battlefield tapped even if you reveal a land card from your hand.

Lands don't have a subtype just because they can produce mana of the corresponding color. Fortified Village itself is neither a Forest nor a Plains, even though it produces green and white mana, so you can't reveal one to satisfy the ability of another.

You may reveal any land card with either or both of the appropriate subtypes. It doesn't have to be a basic land. For example, you could reveal Prairie Stream from the Battle for Zendikar set to satisfy the ability of Fortified Village.

As Fortified Village enters, you may reveal a Forest or Plains card from your hand. If you don't, Fortified Village enters tapped.
{T}: Add {G} or {W}.

From Under the Floorboards

Madness {X}{B}{B} (If you discard this card, discard it into exile. When you do, cast it for its madness cost or put it into your graveyard.)
Create three tapped 2/2 black Zombie creature tokens and you gain 3 life. If this spell's madness cost was paid, instead create X of those tokens and you gain X life.

Game Trail

If a Mountain or Forest is entering the battlefield from your hand at the same time as Game Trail, you may reveal the other land to have Game Trail enter untapped.

If an effect instructs you to put Game Trail onto the battlefield tapped, it will still enter the battlefield tapped even if you reveal a land card from your hand.

Lands don't have a subtype just because they can produce mana of the corresponding color. Game Trail itself is neither a Mountain nor a Forest, even though it produces red and green mana, so you can't reveal one to satisfy the ability of another.

You may reveal any land card with either or both of the appropriate subtypes. It doesn't have to be a basic land. For example, you could reveal Canopy Vista from the Battle for Zendikar set to satisfy the ability of Game Trail.

As Game Trail enters, you may reveal a Mountain or Forest card from your hand. If you don't, Game Trail enters tapped.
{T}: Add {R} or {G}.

Geier Reach Bandit // Vildin-Pack Alpha

If a creature with haste transforms and no longer has haste on the same turn that it comes under your control, such as if you cast a Geier Reach Bandit when you already control a Vildin-Pack Alpha, it won’t be able to attack that turn.

If you control three Vildin-Pack Alphas and a Werewolf enters the battlefield under your control, you may transform it, transform it again, and transform it a third time.

The abilities that transform a Werewolf back and forth look at the entire previous turn, even if the Werewolf with that ability wasn’t on the battlefield for some or all of that turn.

Whenever a Werewolf you control enters, you may transform it.
At the beginning of each upkeep, if a player cast two or more spells last turn, transform Vildin-Pack Alpha.

Card (100)	Type	^{$0.00 (0.00)} Price
Altered Ego	Creature	$0.00 ^(0.00)
Always Watching	Enchantment	$0.00 ^(0.00)
Angel of Deliverance	Creature	$0.00 ^(0.00)
Angel of Deliverance	Creature	$0.00 ^(0.00)
Anguished Unmaking - inverted	Instant	$0.00 ^(0.00)
Anguished Unmaking	Instant	$0.00 ^(0.00)
Anguished Unmaking	Instant	$0.00 ^(0.00)
Archangel Avacyn // Avacyn, the Purifier	Creature	$0.00 ^(0.00)
Archangel Avacyn // Avacyn, the Purifier	Creature	$0.00 ^(0.00)
Arlinn Kord // Arlinn, Embraced by the Moon	Planeswalker	$0.00 ^(0.00)
Arlinn Kord // Arlinn, Embraced by the Moon	Planeswalker	$0.00 ^(0.00)
Asylum Visitor	Creature	$0.00 ^(0.00)
Avacyn's Judgment	Sorcery	$0.00 ^(0.00)
Behold the Beyond	Sorcery	$0.00 ^(0.00)
Brain in a Jar	Artifact	$0.00 ^(0.00)
Burn from Within	Sorcery	$0.00 ^(0.00)
Bygone Bishop	Creature	$0.00 ^(0.00)
Choked Estuary	Land	$0.00 ^(0.00)
Confirm Suspicions	Instant	$0.00 ^(0.00)
Corrupted Grafstone	Artifact	$0.00 ^(0.00)
Cryptolith Rite	Enchantment	$0.00 ^(0.00)
Deathcap Cultivator	Creature	$0.00 ^(0.00)
Declaration in Stone	Sorcery	$0.00 ^(0.00)
Descend upon the Sinful	Sorcery	$0.00 ^(0.00)
Devils' Playground	Sorcery	$0.00 ^(0.00)
Diregraf Colossus	Creature	$0.00 ^(0.00)
Drogskol Cavalry	Creature	$0.00 ^(0.00)
Drogskol Cavalry	Creature	$0.00 ^(0.00)
Drownyard Temple	Land	$0.00 ^(0.00)
Eerie Interlude	Instant	$0.00 ^(0.00)
Eerie Interlude	Instant	$0.00 ^(0.00)
Elusive Tormentor // Insidious Mist	Creature	$0.00 ^(0.00)
Elusive Tormentor // Insidious Mist	Creature	$0.00 ^(0.00)
Elusive Tormentor // Insidious Mist	Creature	$0.00 ^(0.00)
Elusive Tormentor // Insidious Mist	Creature	$0.00 ^(0.00)
Engulf the Shore	Instant	$0.00 ^(0.00)
Epiphany at the Drownyard	Instant	$0.00 ^(0.00)
Ever After	Sorcery	$0.00 ^(0.00)
Falkenrath Gorger	Creature	$0.00 ^(0.00)
Fevered Visions	Enchantment	$0.00 ^(0.00)
Flameblade Angel	Creature	$0.00 ^(0.00)
Flameblade Angel	Creature	$0.00 ^(0.00)
Foreboding Ruins	Land	$0.00 ^(0.00)
Forgotten Creation	Creature	$0.00 ^(0.00)
Fortified Village	Land	$0.00 ^(0.00)
From Under the Floorboards	Sorcery	$0.00 ^(0.00)
Game Trail	Land	$0.00 ^(0.00)
Geier Reach Bandit // Vildin-Pack Alpha	Creature	$0.00 ^(0.00)
Geier Reach Bandit // Vildin-Pack Alpha	Creature	$0.00 ^(0.00)
Geralf's Masterpiece	Creature	$0.00 ^(0.00)

Shadows over Innistrad Promos