Herald's Horn

If you don't put the top card of your library into your hand, you put it back on top of your library without revealing it. You'll draw it in that turn's draw step.

If you somehow control a Herald's Horn with no chosen creature type, no spells will cost less to cast, not even creature spells with no creature type. You'll be able to look at the top card of your library at the beginning of each of your upkeeps, but you can never put it into your hand this way, even if it's a creature card with no creature type.

The effect of Herald's Horn reduces only generic mana in a spell's cost. If that cost has no generic mana, the cost isn't reduced.

To determine the total cost of a spell, start with the mana cost or alternative cost you're paying, add any cost increases, then apply any cost reductions. The mana value of the spell remains unchanged, no matter what the total cost to cast it was.

You can't choose multiple creature types, such as "Cat Warrior." A Cat Warrior is both a Cat and a Warrior. It's affected by anything that affects either type and unaffected by things that affect non-Cat or non-Warrior creatures.

You must choose an existing creature type, such as Vampire or Cat. Card types such as "artifact" can't be chosen.

As Herald's Horn enters, choose a creature type.
Creature spells you cast of the chosen type cost {1} less to cast.
At the beginning of your upkeep, look at the top card of your library. If it's a creature card of the chosen type, you may reveal it and put it into your hand.

Jedit Ojanen

Snapdax, Apex of the Hunt

If there is no legal target for Snapdax’s triggered ability when it triggers, it won’t be put onto the stack at all and you won’t gain 4 life. Similarly, if the target creature or planeswalker is an illegal target by the time the ability tries to resolve, the ability won’t resolve and you won’t gain 4 life.

Mutate {2}{B/R}{W}{W} (If you cast this spell for its mutate cost, put it over or under target non-Human creature you own. They mutate into the creature on top plus all abilities from under it.)
Double strike
Whenever this creature mutates, it deals 4 damage to target creature or planeswalker an opponent controls and you gain 4 life.

Temur Sabertooth

You choose whether to return a creature and which creature to return as the activated ability resolves. This doesn't target any creature.

{1}{G}: You may return another creature you control to its owner's hand. If you do, Temur Sabertooth gains indestructible until end of turn.

Yuriko, the Tiger's Shadow

Activating Yuriko's commander ninjutsu ability isn't the same as casting Yuriko as a spell. You won't have to pay the commander tax to activate that ability, and activating that ability won't increase the commander tax to pay later.

Although the ninjutsu ability has the creature enter the battlefield attacking, it was never declared as an attacking creature (for the purposes of abilities that trigger whenever a creature attacks, for example).

Commander ninjutsu is a variant of ninjutsu that can be activated from the command zone as well as from your hand. Just as with regular ninjutsu, the Ninja enters attacking the player or planeswalker that the returned creature was attacking.

If a card in a player's library has {X} in its mana cost, X is considered to be 0.

Commander ninjutsu {U}{B} ({U}{B}, Return an unblocked attacker you control to hand: Put this card onto the battlefield from your hand or the command zone tapped and attacking.)
Whenever a Ninja you control deals combat damage to a player, reveal the top card of your library and put that card into your hand. Each opponent loses life equal to that card's mana value.

Card (5)	Type	^{$0.00 (0.00)} Price
Herald's Horn	Artifact	$0.00 ^(0.00)
Jedit Ojanen	Creature	$0.00 ^(0.00)
Snapdax, Apex of the Hunt	Creature	$0.00 ^(0.00)
Temur Sabertooth	Creature	$0.00 ^(0.00)
Yuriko, the Tiger's Shadow	Creature	$0.00 ^(0.00)

Year of the Tiger 2022