Sacrifice a creature: Target player mills cards equal to the sacrificed creature's power.

At the beginning of your end step, you may exile target creature you control, then return that card to the battlefield under your control.

{1}, {T}, Sacrifice a creature: Count the colors of the sacrificed creature, then search your library for a creature card that's exactly that many colors plus one. Exile that card, then shuffle. You may cast the exiled card. Activate only as a sorcery.

Sacrifice a creature: Add one mana of any color.

{2}{U}, {T}: Put target creature on the bottom of its owner's library. That creature's controller reveals cards from the top of their library until they reveal a creature card. The player puts that card onto the battlefield and the rest on the bottom of their library in any order. Activate only as a sorcery.

Exploit (When this creature enters, you may sacrifice a creature.) When this creature exploits a creature, return target instant or sorcery card from your graveyard to your hand.

Copy target creature spell you control, except it isn't legendary if the spell is legendary. (A copy of a creature spell becomes a token.)

Emerge {6}{U} (You may cast this spell by sacrificing a creature and paying the emerge cost reduced by that creature's mana value.) When this creature enters, if you cast it, return each non-Dinosaur creature to its owner's hand.

Emerge {5}{G}{U} (You may cast this spell by sacrificing a creature and paying the emerge cost reduced by that creature's mana value.) When you cast this spell, you may put target nonland permanent on top of its owner's library.

Emerge {7}{G} (You may cast this spell by sacrificing a creature and paying the emerge cost reduced by that creature's mana value.) When you cast this spell, you may destroy target artifact or enchantment.

You may have this creature enter as a copy of any creature card in a graveyard.

Each creature you control that's a Food or a Golem gets +2/+2 and has trample. Whenever another nontoken creature you control dies, you may exile it. If you do, create a token that's a copy of that creature, except it's a 1/1 Food Golem artifact creature in addition to its other types and it has "{2}, {T}, Sacrifice this token: You gain 3 life."

You may choose not to untap this creature during your untap step. As this creature enters, an opponent chooses a creature type. {T}: Gain control of target creature that isn't of the chosen type for as long as this creature remains tapped.

You may have this creature enter as a copy of any creature on the battlefield.

Defender {T}: Creatures you control gain haste until end of turn.

Flash (You may cast this spell any time you could cast an instant.) Emerge {7}{U} (You may cast this spell by sacrificing a creature and paying the emerge cost reduced by that creature's mana value.) This creature has hexproof as long as it entered this turn.

Flying Whenever a nontoken creature an opponent controls enters, create a token that's a copy of that creature except it's an artifact in addition to its other types. Then exile all other tokens created with this creature.

Zombies you control have flying. {U}, {T}, Sacrifice another nontoken creature: Create an X/X blue Zombie creature token, where X is the sacrificed creature's toughness.

{T}: Untap another target permanent. {T}: Untap two other target legendary creatures.

{2}{U}, {T}, Sacrifice another creature: Reveal cards from the top of your library until you reveal a nonlegendary creature card. Put that card onto the battlefield and the rest on the bottom of your library in a random order.

{T}: Untap another target permanent.

Dominate Monster — When this creature enters, gain control of target creature for as long as you control this creature.

{3}{U}, {T}: Exile another target creature you control, then return that card to the battlefield under your control.

Whenever an opponent casts a spell, you may exchange control of this creature and that spell. If you do, you may choose new targets for the spell. (If the spell becomes a permanent, you control that permanent.)

Exploit (When this creature enters, you may sacrifice a creature.) When this creature exploits a creature, return to their owners' hands all creatures your opponents control with toughness less than the exploited creature's toughness.

You may have this creature enter as a copy of any creature on the battlefield, except it has "At the beginning of your upkeep, if this creature isn't a token, create a token that's a copy of this creature."

{G}: Exile target card from a graveyard. If it was a creature card, put a +1/+1 counter on this creature and you gain 1 life.

{T}: Untap target creature.

When this creature enters, you may search your library for a basic land card, put that card onto the battlefield tapped, then shuffle. When this creature dies, you may draw a card.

Flying When this creature enters, gain control of target creature for as long as this creature remains on the battlefield.

Flash You may have this creature enter as a copy of any creature on the battlefield.

Indestructible As long as your devotion to blue is less than five, Thassa isn't a creature. At the beginning of your end step, exile up to one other target creature you control, then return that card to the battlefield under your control. {3}{U}: Tap another target creature.

Emerge {5}{C}{U} (You may cast this spell by sacrificing a creature and paying the emerge cost reduced by that creature's mana value.) When you cast this spell, tap up to two target permanents. Put a stun counter on each of them. (If a permanent with a stun counter would become untapped, remove one from it instead.) Flying

As an additional cost to cast this spell, sacrifice a creature. Search your library for a creature card with mana value X or less, where X is 2 plus the sacrificed creature's mana value. Put that card onto the battlefield, then shuffle. Exile Eldritch Evolution.

As an additional cost to cast this spell, sacrifice a creature. Draw cards equal to the sacrificed creature's power.

As an additional cost to cast this spell, sacrifice a creature. Search your library for a creature card with mana value equal to 1 plus the sacrificed creature's mana value, put that card onto the battlefield with an additional +1/+1 counter on it, then shuffle.

Kicker—Sacrifice a creature. (You may sacrifice a creature in addition to any other costs as you cast this spell.) Search your library for a basic land card, put that card onto the battlefield, then shuffle. If this spell was kicked, instead search your library for up to two basic land cards, put them onto the battlefield, then shuffle.

Emerge {5}{W} (You may cast this spell by sacrificing a creature and paying the emerge cost reduced by that creature's mana value.) When this creature enters, create a 2/2 white Alien creature token. If this creature's emerge cost was paid, instead create X of those tokens, where X is the sacrificed creature's toughness.

Vigilance When you cast or cycle Drownyard Lurker, create a 0/1 colorless Eldrazi Spawn creature token with "Sacrifice this token: Add {C}." Cycling {2}{U} ({2}{U}, Discard this card: Draw a card.)

{G}, Sacrifice a creature: Reveal cards from the top of your library until you reveal a creature card. Put that card into your hand and the rest on the bottom of your library in a random order.

Sacrifice a creature: Regenerate target creature.

As an additional cost to cast this spell, sacrifice a creature. Enchant creature You control enchanted creature. Enchanted creature gets +1/+1.

Sacrifice a creature: Draw cards equal to the sacrificed creature's power, then discard three cards.

Sacrifice a creature: The next time a source of your choice would deal damage to any target this turn, prevent that damage.

Enchant creature {U}: Untap enchanted creature. {U}: Enchanted creature gains flying until end of turn. {U}: Enchanted creature gains shroud until end of turn. (It can't be the target of spells or abilities.) {1}: Enchanted creature gets +1/-1 or -1/+1 until end of turn.

At the beginning of combat on your turn, Oko becomes a copy of up to one target creature you control until end of turn, except he has hexproof. +1: Draw two cards. If you've committed a crime this turn, discard a card. Otherwise, discard two cards. −1: Create a 3/3 green Elk creature token. −5: For each other nonland permanent you control, create a token that's a copy of that permanent.

Compleated ({G/U/P} can be paid with {G}, {U}, or 2 life. If life was paid, this planeswalker enters with two fewer loyalty counters.) +1: Tap up to one target artifact or creature. It doesn't untap during its controller's next untap step. −X: Exile target nonland permanent card with mana value X from your graveyard. Create a token that's a copy of that card. −7: Create Tamiyo's Notebook, a legendary colorless artifact token with "Spells you cast cost {2} less to cast" and "{T}: Draw a card."

+1: Choose up to one target artifact, up to one target creature, and up to one target land. Untap the chosen permanents you control. Tap the chosen permanents you don't control. You gain 2 life. −2: Look at the top three cards of your library. Put one of them into your hand and the rest on the bottom of your library in any order. −7: You get an emblem with "Untap all permanents you control during each opponent's untap step" and "You draw a card during each opponent's draw step."