Whenever Ashling, the Extinguisher deals combat damage to a player, choose target creature that player controls. The player sacrifices that creature.

As Ashling's Prerogative enters the battlefield, choose odd or even. (Zero is even.)

Each creature with mana value of the chosen quality has haste.

Each creature without mana value of the chosen quality enters the battlefield tapped.

Flying

Whenever you cast an instant or sorcery spell, Ashmouth Dragon deals 2 damage to any target.

Whenever a creature deals damage to you, destroy it.

Deathtouch

Whenever Ashnod, Flesh Mechanist attacks, you may sacrifice another creature. If you do, create a tapped Powerstone token.

, Exile a creature card from your graveyard: Create a tapped 3/3 colorless Zombie artifact creature token.

You may choose not to untap Ashnod's Battle Gear during your untap step.

, : Target creature you control gets +2/-2 for as long as Ashnod's Battle Gear remains tapped.

, : Target player looks at the top three cards of their library, puts one of them back on top of their library, then exiles the rest.

Until end of turn, target creature gets +2/+0 and gains "When this creature dies or is put into exile from the battlefield, return it to its owner's hand."

You may cast Asinine Antics as though it had flash if you pay more to cast it.

For each creature your opponents control, create a Cursed Role token attached to that creature. (If you control another Role on it, put that one into the graveyard. Enchanted creature is 1/1.)

Binding Contract — If you would draw a card, exile the top card of your library face down instead.

: Draw seven cards.

: Return all cards exiled with Asmodeus the Archfiend to their owner's hand and you lose that much life.

Enchant creature

Enchanted creature gets +1/+3 and has deathtouch. (Any amount of damage it deals to a creature is enough to destroy it.)

Enchant creature you control

When Aspect of Lamprey enters the battlefield, target opponent discards two cards.

Enchanted creature has lifelink.

Enchant creature

Enchanted creature has shroud. (It can't be the target of spells or abilities.)

When Aspect of Mongoose is put into a graveyard from the battlefield, return Aspect of Mongoose to its owner's hand.

: Regenerate Asphodel Wanderer.

Until end of turn, target creature gets +1/+3 and gains flying and toxic 1. (Players dealt combat damage by that creature also get a poison counter.)

Menace

Ruinous Ascension — When Aspiring Champion deals combat damage to a player, sacrifice it. If you do, reveal cards from the top of your library until you reveal a creature card. Put that card onto the battlefield, then shuffle the rest into your library. If that creature is a Demon, it deals damage equal to its power to each opponent.

Destroy target tapped creature.

This spell costs less to cast if you control an artifact and less to cast if you control an enchantment.

Destroy target creature or planeswalker.

Destroy target permanent an opponent controls. Its controller may search their library for a basic land card, put it onto the battlefield, then shuffle.

Each creature you control assigns combat damage equal to its toughness rather than its power.

: Target creature with defender can attack this turn as though it didn't have defender.

: Creatures you control get +0/+1 until end of turn.

First strike, menace

Chainsword — Whenever a creature an opponent controls dies, that player loses 2 life.

Target creature gains double strike until end of turn. (It deals both first-strike and regular combat damage.)

Flying, trample

Create three 2/2 green and white Elf Knight creature tokens with vigilance.

Creatures you control have reach.

Sacrifice Assemble the Entmoot: Create three tapped X/X green Treefolk creature tokens, where X is the amount of life you gained this turn. Put a reach counter on each of them.

You may look at the top card of your library any time.

Once each turn, you may cast a creature spell with power 2 or less from the top of your library.

Whenever Assembled Alphas blocks or becomes blocked by a creature, Assembled Alphas deals 3 damage to that creature and 3 damage to that creature's controller.

, : Reveal a creature card in your hand. Search your library for a card with the same name as that card, reveal it, put it into your hand, then shuffle.

Affinity for artifacts (This spell costs less to cast for each artifact you control.)

Counter target spell. If that spell is countered this way, exile it instead of putting it into its owner's graveyard.

When Assimilation Aegis enters the battlefield, exile up to one target creature until Assimilation Aegis leaves the battlefield.

Whenever Assimilation Aegis becomes attached to a creature, for as long as Assimilation Aegis remains attached to it, that creature becomes a copy of a creature card exiled with Assimilation Aegis.

Equip

Put a +1/+1 counter on target creature. That creature gains indestructible until end of turn.

Exile target creature. Put X +1/+1 counters on a commander creature you control, where X is the power of the creature exiled this way.

No more than one creature can attack each combat.

No more than one creature can block each combat.

Whenever chaos ensues, Astral Arena deals 2 damage to each creature.

Astral Cornucopia enters the battlefield with X charge counters on it.

: Choose a color. Add one mana of that color for each charge counter on Astral Cornucopia.

Whenever you cycle Astral Drift or cycle another card while Astral Drift is on the battlefield, you may exile target creature. If you do, return that card to the battlefield under its owner's control at the beginning of the next end step.

Cycling (, Discard this card: Draw a card.)

Target creature gets +1/+2 until end of turn.

Storm (When you cast this spell, copy it for each spell cast before it this turn. You may choose new targets for the copies.)

Whenever Astrid Peth enters the battlefield or attacks, create a Food token.

Brand-new Sky — Whenever you sacrifice a Clue or Food, Astrid Peth explores. (Reveal the top card of your library. Put that card into your hand if it's a land. Otherwise, put a +1/+1 counter on this creature, then put the card back or put it into your graveyard.)

When Astroquarium enters the battlefield, you may put an art sticker on it.

, : Until end of turn, target creature becomes a blue Shark with base power and toughness 4/4. If the cracks in Astroquarium's art are completely covered, that creature becomes a blue Octopus with base power and toughness 8/8 instead. Activate only as a sorcery.

As long as it's your turn, outlaws you control have first strike. (Assassins, Mercenaries, Pirates, Rogues, and Warlocks are outlaws.)

Whenever you commit a crime, create a 1/1 red Mercenary creature token with ": Target creature you control gets +1/+0 until end of turn. Activate only as a sorcery." This ability triggers only once each turn.

, : Choose one —

• Prevent the next X damage that would be dealt to target creature this turn. Spend only white mana on X.

• You gain X life. Spend only white mana on X.

Megamorph (You may cast this card face down as a 2/2 creature for . Turn it face up any time for its megamorph cost and put a +1/+1 counter on it.)

When Atarka Efreet is turned face up, it deals 1 damage to any target.

Formidable — : Creatures you control gain menace until end of turn. Activate only if creatures you control have total power 8 or greater. (They can't be blocked except by two or more creatures.)

Choose two —

• Your opponents can't gain life this turn.

• Atarka's Command deals 3 damage to each opponent.

• You may put a land card from your hand onto the battlefield.

• Creatures you control get +1/+1 and gain reach until end of turn.

Indestructible

As long as your devotion to white and black is less than seven, Athreos isn't a creature.

Whenever another creature you own dies, return it to your hand unless target opponent pays 3 life.

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Whenever you cast a noncreature spell, put an oil counter on Atmosphere Surgeon.

Remove an oil counter from Atmosphere Surgeon: Target creature gains flying until end of turn. Activate only as a sorcery.

Sacrifice an Atog creature: Atogatog gets +X/+X until end of turn, where X is the sacrificed creature's power.

Whenever you roll a 1 or 2, put that many +1/+1 counters on Atomwheel Acrobats.

: Roll a six-sided die.

Flying, vigilance, deathtouch, lifelink

At the beginning of your end step, proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)

Atraxa's Skitterfang enters the battlefield with three oil counters on it.

At the beginning of combat on your turn, you may remove an oil counter from Atraxa's Skitterfang. When you do, target creature you control gains your choice of flying, vigilance, deathtouch, or lifelink until end of turn.