: Add .

, : Until end of turn, creatures your opponents control lose hexproof and shroud and can't have hexproof or shroud.

Target creature gets -4/-0 until end of turn.

Learn. (You may reveal a Lesson card you own from outside the game and put it into your hand, or discard a card to draw a card.)

Flying

When Arcanist's Owl enters, look at the top four cards of your library. You may reveal an artifact or enchantment card from among them and put it into your hand. Put the rest on the bottom of your library in a random order.

Modular 3 (This creature enters with three +1/+1 counters on it. When it dies, you may put its +1/+1 counters on target artifact creature.)

Trample

Whenever another artifact enters, put a +1/+1 counter on Arcbound Crusher.

Modular 1 (This creature enters with a +1/+1 counter on it. When it dies, you may put its +1/+1 counters on target artifact creature.)

Haste

Modular 2 (This creature enters with two +1/+1 counters on it. When it dies, you may put its +1/+1 counters on target artifact creature.)

First strike

Modular 4 (This creature enters with four +1/+1 counters on it. When it dies, you may put its +1/+1 counters on target artifact creature.)

At the beginning of your upkeep, put a +1/+1 counter on each creature you control with modular.

Modular 6 (This creature enters with six +1/+1 counters on it. When it dies, you may put its +1/+1 counters on target artifact creature.)

Sacrifice an artifact: Put a +1/+1 counter on Arcbound Ravager.

Modular 1 (This creature enters with a +1/+1 counter on it. When it dies, you may put its +1/+1 counters on target artifact creature.)

First strike

When Arcbound Shikari enters, put a +1/+1 counter on each other artifact creature you control.

Modular 2 (This creature enters with two +1/+1 counters on it. When it dies, you may put its +1/+1 counters on target artifact creature.)

Whenever Arcbound Slith deals combat damage to a player, put a +1/+1 counter on it.

Modular 1 (This creature enters with a +1/+1 counter on it. When it dies, you may put its +1/+1 counters on target artifact creature.)

Menace

Modular 2 (This creature enters with two +1/+1 counters on it. When it dies, you may put its +1/+1 counters on target artifact creature.)

Whenever you cast a spell other than your first spell each turn, put a +1/+1 counter on Arcbound Tracker.

Flying

: Arcbound Whelp gets +1/+0 until end of turn.

Modular 2 (This creature enters with two +1/+1 counters on it. When it dies, you may put its +1/+1 counters on target artifact creature.)

Living metal (During your turn, this Vehicle is also a creature.)

Whenever you cast a spell that targets one or more creatures or Vehicles you control, put that many +1/+1 counters on Arcee. Convert Arcee.

Ascend (If you control ten or more permanents, you get the city's blessing for the rest of the game.)

: Add .

, : Draw a card. Activate only if you have the city's blessing.

When Archaeomancer enters, return target instant or sorcery card from your graveyard to your hand.

When Archaeomender enters, return target artifact card from your graveyard to your hand.

Flying

Lifelink (Damage dealt by this creature also causes you to gain that much life.)

Whenever you gain life, put a +1/+1 counter on each creature you control.

Kicker and/or (You may pay an additional and/or as you cast this spell.)

Flying, lifelink

When Archangel of Wrath enters, if it was kicked, it deals 2 damage to any target.

When Archangel of Wrath enters, if it was kicked twice, it deals 2 damage to any target.

Draft Archdemon of Paliano face up.

As long as Archdemon of Paliano is face up during the draft, you can't look at booster packs and must draft cards at random. After you draft three cards this way, turn Archdemon of Paliano face down. (You may look at cards as you draft them.)

Flying

As long as Archelos, Lagoon Mystic is tapped, other permanents enter tapped.

As long as Archelos is untapped, other permanents enter untapped.

Creatures you control have trample.

Creatures your opponents control lose trample and can't have or gain trample.

Creatures you control have hexproof.

Creatures your opponents control lose hexproof and can't have or gain hexproof.

Creatures you control have flying.

Creatures your opponents control lose flying and can't have or gain flying.

Flying

Your opponents can't gain life.

At the beginning of each end step, each opponent loses life equal to the life that player lost this turn. (Damage causes loss of life.)

Flying

When Archfiend of Sorrows enters, creatures your opponents control get -2/-2 until end of turn.

Unearth (: Return this card from your graveyard to the battlefield. It gains haste. Exile it at the beginning of the next end step or if it would leave the battlefield. Unearth only as a sorcery.)

Flying

Archfiend of the Dross enters with four oil counters on it.

At the beginning of your upkeep, remove an oil counter from Archfiend of the Dross. Then if it has no oil counters on it, you lose the game.

Whenever a creature an opponent controls dies, its controller loses 2 life.

Mutate (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.)

Whenever this creature mutates, tap up to X target creatures, where X is the number of times this creature has mutated. Those creatures don't untap during their controller's next untap step.

Landfall — Whenever a land you control enters, you get (an energy counter).

Pay eight : Create a 6/6 colorless Beast artifact creature token.

Flying

Ward (Whenever this creature becomes the target of a spell or ability an opponent controls, counter it unless that player pays .)

When Archive Dragon enters, scry 2.

Flash

Whenever an opponent searches their library, you gain 1 life and draw a card.

Flying, ward

Whenever you cast a Faerie or Wizard permanent spell, copy it. (The copy becomes a token.)

Flying

Protection from white (This creature can't be blocked, targeted, dealt damage, enchanted, or equipped by anything white.)

Creatures can't attack you or planeswalkers you control unless their controller pays for each of those creatures.

Flying

Whenever Archon of Cruelty enters or attacks, target opponent sacrifices a creature or planeswalker of their choice, discards a card, and loses 3 life. You draw a card and gain 3 life.

Flying

When Archon of Falling Stars dies, you may return target enchantment card from your graveyard to the battlefield.

Flying

Whenever Archon of Redemption or another creature you control with flying enters, you may gain life equal to that creature's power.

Flying

Whenever Archon of the Triumvirate attacks, detain up to two target nonland permanents your opponents control. (Until your next turn, those permanents can't attack or block and their activated abilities can't be activated.)

Flying, vigilance, trample

As Archon of Valor's Reach enters, choose artifact, enchantment, instant, sorcery, or planeswalker.

Players can't cast spells of the chosen type.

Archpriest of Iona's power is equal to the number of creatures in your party. (Your party consists of up to one each of Cleric, Rogue, Warrior, and Wizard.)

At the beginning of combat on your turn, if you have a full party, target creature gets +1/+1 and gains flying until end of turn.

Archway Commons enters tapped.

When Archway Commons enters, sacrifice it unless you pay .

: Add one mana of any color.

Flying, haste

At the beginning of the end step, return Archwing Dragon to its owner's hand.

Squad (As an additional cost to cast this spell, you may pay any number of times. When this creature enters, create that many tokens that are copies of it.)

Arco-Flagellant can't block.

Endurant — Pay 3 life: Arco-Flagellant gains indestructible until end of turn.

Arctic Foxes can't be blocked by creatures with power 2 or greater as long as defending player controls a snow land.

Trample

Cumulative upkeep or (At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay its upkeep cost for each age counter on it.)

When Arctic Nishoba dies, you gain 2 life for each age counter on it.

: Target artifact creature's controller sacrifices it. That player may search their library for a noncreature artifact card, put it onto the battlefield, then shuffle.

Reach, lifelink

Outlast (, : Put a +1/+1 counter on this creature. Outlast only as a sorcery.)

Each other creature you control without a +1/+1 counter on it has outlast .

When Ardent Electromancer enters, add for each creature in your party. (Your party consists of up to one each of Cleric, Rogue, Warrior, and Wizard.)

Create a 2/2 white Knight creature token with vigilance. (Then exile this card. You may cast the enchantment later from exile.)

Haste

Whenever Ardoz, Cobbler of War or another creature you control enters, that creature gets +2/+0 until end of turn.

: Create a 1/1 red Goblin creature token with haste. Activate only as a sorcery.

Legendary creatures don't untap during their controllers' untap steps.

When Arena of the Ancients enters, tap all legendary creatures.