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.

Reach, trample

Flying, haste

At the beginning of combat on your turn, if you've cast three or more instant and sorcery spells this turn, return Arclight Phoenix from your graveyard to the battlefield.

Flying

Arctic Aven gets +1/+1 as long as you control a Plains.

: Arctic Aven gains lifelink until end of turn. (Damage dealt by this creature also causes you to gain that much life.)

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 their library.

, : Target creature gains vigilance until end of turn. Activate this ability only during combat and only if defending player controls a snow land.

, : Choose target non-Wall creature the active player has controlled continuously since the beginning of the turn. That player may pay , where X is that creature's converted mana cost. If they don't pay, the creature attacks this turn if able, and at the beginning of the next end step, destroy it if it didn't attack this turn. Activate this ability only before attackers are declared.

Vigilance

Metalcraft — Ardent Recruit gets +2/+2 as long as you control three or more artifacts.

Adamant — If at least three white mana was spent to cast this spell, Ardenvale Paladin enters the battlefield with a +1/+1 counter on it.

, : Tap target creature you control and target creature of an opponent's choice they control. Those creatures fight each other. (Each deals damage equal to its power to the other.)

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

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

Whenever you cast your first spell during each opponent's turn, put a +1/+1 counter on Arena Trickster.

Target permanent becomes an artifact in addition to its other types until end of turn.

Draw a card.

Equipped creature gets +6/+6.

Whenever equipped creature attacks, destroy target permanent.

Equip

: Prevent the next 2 damage that would be dealt to target artifact creature this turn.

Return target artifact card from your graveyard to the battlefield.

Shroud (This creature can't be the target of spells or abilities.)

Whenever you cast an enchantment spell, draw a card.

Trample

Trample

When Argothian Wurm enters the battlefield, any player may sacrifice a land. If a player does, put Argothian Wurm on top of its owner's library.

When Aria of Flame enters the battlefield, each opponent gains 10 life.

Whenever you cast an instant or sorcery spell, put a verse counter on Aria of Flame, then it deals damage equal to the number of verse counters on it to target player or planeswalker.

Arisen Gorgon has deathtouch as long as you control a Liliana planeswalker. (Any amount of damage this deals to a creature is enough to destroy it.)

Flying

Whenever you cast a spell, put the cards in your hand on the bottom of your library in any order, then draw that many cards.

+1: Until end of turn, up to one target creature gets +2/+2 and gains vigilance and haste.

0: Create a 2/2 green Wolf creature token. Transform Arlinn Kord.

Each creature you control that's a Wolf or a Werewolf enters the battlefield with an additional +1/+1 counter on it.

−2: Create a 2/2 green Wolf creature token.

Until end of turn, creatures you control gain "Whenever this creature deals damage to an opponent, you may return target creature that player controls to its owner's hand."

Enchant creature

Enchanted creature gets +2/+2 and has trample.

Whenever enchanted creature deals damage, you gain that much life.

At the beginning of your upkeep, put a doom counter on Armageddon Clock.

At the beginning of your draw step, Armageddon Clock deals damage equal to the number of doom counters on it to each player.

: Remove a doom counter from Armageddon Clock. Any player may activate this ability but only during any upkeep step.

Other Kor creatures you control get +2/+2 for each Equipment attached to Armament Master.

Target creature gets +1/+1 and gains double strike until end of turn.

Fuse (You may cast one or both halves of this card from your hand.)

, , Sacrifice Armillary Sphere: Search your library for up to two basic land cards, reveal them, put them into your hand, then shuffle your library.

Enchant creature

Enchanted creature gets +1/+1.

: Enchanted creature gets +0/+1 until end of turn.

All Sliver creatures have ": This creature gets +0/+1 until end of turn."

When Armorcraft Judge enters the battlefield, draw a card for each creature you control with a +1/+1 counter on it.

Flying, vigilance

Flying

Prevent all combat damage that would be dealt to Armored Transport by creatures blocking it.

, : Target creature gets +1/+0 until end of turn.

, : Target creature gets +0/+1 until end of turn.

Armory Guard has vigilance as long as you control a Gate.

, Sacrifice a Goblin: Arms Dealer deals 4 damage to target creature.

, Sacrifice a land: Destroy target land.

Create thirteen tapped 2/2 black Zombie creature tokens.

Flashback (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Enchant creature

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

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

Addendum — If you cast this spell during your main phase, that creature gains flying until end of turn.

Flying

Arrow Storm deals 4 damage to any target.

Raid — If you attacked this turn, instead Arrow Storm deals 5 damage to that permanent or player and the damage can't be prevented.