Flying

Anya, Merciless Angel gets +3/+3 for each opponent whose life total is less than half their starting life total.

As long as an opponent's life total is less than half their starting life total, Anya has indestructible.

Whenever Anzrag, the Quake-Mole becomes blocked, untap each creature you control. After this phase, there is an additional combat phase.

: Anzrag must be blocked each combat this turn if able.

Flying, vigilance

When Ao, the Dawn Sky dies, choose one —

• Look at the top seven cards of your library. Put any number of nonland permanent cards with total mana value 4 or less from among them onto the battlefield. Put the rest on the bottom of your library in a random order.

• Put two +1/+1 counters on each permanent you control that's a creature or Vehicle.

Whenever Apes of Rath attacks, it doesn't untap during its controller's next untap step.

Cascade, cascade, cascade, cascade (When you cast this spell, exile cards from the top of your library until you exile a nonland card that costs less. You may cast it without paying its mana cost. Put the exiled cards on the bottom in a random order. Multiple instances of cascade each trigger separately.)

Apex Observatory enters tapped. As it enters, choose a card type shared among two exiled cards used to craft it.

: The next spell you cast this turn of the chosen type can be cast without paying its mana cost.

Flying

At the beginning of your end step, you may exile an enchantment card from your graveyard. If you do, create a 2/2 black Zombie creature token.

Return up to three target creature cards of the creature type of your choice from your graveyard to your hand.

Tap two untapped Wizards you control: Tap target permanent.

Flying

When Aphetto Vulture dies, you may put target Zombie card from your graveyard on top of your library.

Exile all permanents. You discard your hand.

Flying

Apocalypse Demon's power and toughness are each equal to the number of cards in your graveyard.

At the beginning of your upkeep, tap Apocalypse Demon unless you sacrifice another creature.

Flying

Corrupted — As long as an opponent has three or more poison counters, Apostle of Invasion has double strike.

( can be paid with either or 2 life.)

Target artifact or creature you control gains protection from artifacts or from the color of your choice until end of turn.

Whenever a player casts a white spell, you may pay . If you do, you gain 1 life.

Until end of turn, target creature gains trample and gets +X/+X, where X is the number of creatures you control.

Target opponent reveals their hand. You choose a card from it with mana value 4 or greater and exile that card.

, Pay 4 life, Sacrifice Apple of Eden: Look at target opponent's hand and exile those cards face down. You may play those cards this turn, and mana of any type can be spent to cast them. Until end of turn, whenever you play a land or cast a spell this way, its owner draws a card. At the beginning of the next end step, return the exiled cards to their owner's hand. Activate only as a sorcery.

Choose one or both —

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

• Return target creature to its owner's hand.

Reach

Training (Whenever this creature attacks with another creature with greater power, put a +1/+1 counter on this creature.)

, : Add .

Discard a card: Switch Aquamoeba's power and toughness until end of turn.

Graft 2 (This creature enters with two +1/+1 counters on it. Whenever another creature enters, you may move a +1/+1 counter from this creature onto it.)

: Target creature with a +1/+1 counter on it gains reach until end of turn. (It can block creatures with flying.)

When Aquatic Incursion enters, create two 1/1 blue Merfolk creature tokens with hexproof. (They can't be the targets of spells or abilities your opponents control.)

: Target Merfolk can't be blocked this turn.

Enchant creature

Enchanted creature can't be blocked.

Whenever enchanted creature attacks, scry 1. (Look at the top card of your library. You may put that card on the bottom.)

, : Target creature gets -2/-0 until end of turn.

Whenever Arabella, Abandoned Doll attacks, it deals X damage to each opponent and you gain X life, where X is the number of creatures you control with power 2 or less.

Create X 1/2 green Spider creature tokens with reach, where X is the number of creatures attacking you. Prevent all combat damage that would be dealt this turn by non-Spider creatures.

Target creature gets +2/+2 and gains reach until end of turn. Untap it.

Enchant creature

Enchanted creature can't attack or block, and its activated abilities can't be activated.

At the beginning of the end step, if enchanted creature's power is 4 or greater, destroy Arachnus Web.

Enlist (As this creature attacks, you may tap a nonattacking creature you control without summoning sickness. When you do, add its power to this creature's until end of turn.)

Whenever a creature you control attacks, if it enlisted a creature this combat, the creature that attacked gains double strike until end of turn. If that creature's power is 4 or greater, draw a card.

Whenever the Ring tempts you, if you chose a creature other than Aragorn, Company Leader as your Ring-bearer, put your choice of a counter from among first strike, vigilance, deathtouch, and lifelink on Aragorn.

Whenever you put one or more counters on Aragorn, put one of each of those kinds of counters on up to one other target creature.

Vigilance, lifelink

When Aragorn, King of Gondor enters, you become the monarch.

Whenever Aragorn attacks, up to one target creature can't block this turn. If you're the monarch, creatures can't block this turn.

Eminence — At the beginning of combat on your turn, if Arahbo, Roar of the World is in the command zone or on the battlefield, another target Cat you control gets +3/+3 until end of turn.

Whenever another Cat you control attacks, you may pay . If you do, it gains trample and gets +X/+X until end of turn, where X is its power.

When Arashin Cleric enters, you gain 3 life.

Flying

When Arashin Sovereign dies, you may put it on the top or bottom of its owner's library.

Reach

Whenever an opponent casts an instant or sorcery spell, create a 1/2 green Spider creature token with reach.

Whenever Arbaaz Mir or another nontoken historic permanent you control enters, Arbaaz Mir deals 1 damage to each opponent and you gain 1 life. (Artifacts, legendaries, and Sagas are historic.)

When Arbalest Engineers enters, choose one —

• Arbalest Engineers deals 1 damage to any target.

• Put a +1/+1 counter on target creature. It gains trample and haste until end of turn.

• Create a tapped Powerstone token. (It's an artifact with ": Add . This mana can't be spent to cast a nonartifact spell.")

Flying

Inspired — Whenever Arbiter of the Ideal becomes untapped, reveal the top card of your library. If it's an artifact, creature, or land card, you may put it onto the battlefield with a manifestation counter on it. That permanent is an enchantment in addition to its other types.

Reach

: Monstrosity 3. (If this creature isn't monstrous, put three +1/+1 counters on it and it becomes monstrous.)

When Arbor Colossus becomes monstrous, destroy target creature with flying an opponent controls.

Trample

When Arborback Stomper enters, you gain 5 life.

When Arboreal Alliance enters, create an X/X green Treefolk creature token.

Whenever you attack with one or more Elves, populate. (Create a token that's a copy of a creature token you control.)

Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for or one mana of that creature's color.)

Hexproof (This creature can't be the target of spells or abilities your opponents control.)

Arc Blade deals 2 damage to any target. Exile Arc Blade with three time counters on it.

Suspend 3— (Rather than cast this card from your hand, you may pay and exile it with three time counters on it. At the beginning of your upkeep, remove a time counter. When the last is removed, you may cast it without paying its mana cost.)

, , Discard a card: Arc Mage deals 2 damage divided as you choose among one or two targets.

Equipped creature has ": This creature deals 1 damage to target creature that's blocking it."

Equip (: Attach to target creature you control. Equip only as a sorcery.)

: Draw a card, then discard a card. Put a quest counter on Arcade Gannon.

For Auld Lang Syne — Once during each of your turns, you may cast an artifact or Human spell from your graveyard with mana value less than or equal to the number of quest counters on Arcade Gannon.

Flying, vigilance

Whenever a creature you control with defender enters, draw a card.

Each creature you control with defender assigns combat damage equal to its toughness rather than its power and can attack as though it didn't have defender.

Target creature gets +3/+3 and gains reach and trample until end of turn.

You get a boon with "When you cast your next creature spell, that creature enters the battlefield with an additional +1/+1 counter, reach counter, and trample counter on it."