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

Draw a card.

First strike, protection from multicolored

At the beginning of your upkeep, sacrifice Argentum Masticore unless you discard a card. When you discard a card this way, destroy target nonland permanent an opponent controls with mana value less than or equal to the mana value of the discarded card.

Return target artifact card from your graveyard to the battlefield.

: Untap two target lands.

When Argothian Opportunist enters, create a tapped Powerstone token. (It's an artifact with ": Add . This mana can't be spent to cast a nonartifact spell.")

Argothian Sprite can't be blocked by artifact creatures.

: Put two +1/+1 counters on Argothian Sprite.

Prevent all damage that would be dealt to Argothian Treefolk by artifact sources.

, Pay 2 life: Draw a card.

At the beginning of your upkeep, if you have 5 or less life, you may transform Arguel's Blood Fast.

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.)

+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.

Nightbound (If a player casts at least two spells during their own turn, it becomes day next turn.)

+2: Add .

0: Until end of turn, Arlinn, the Moon's Fury becomes a 5/5 Werewolf creature with trample, indestructible, and haste.

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

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

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.

Enchant creature

Enchanted creature has double strike as long as it's an enchantment. Otherwise, prevent all damage that would be dealt by enchanted creature. (A creature with double strike deals both first-strike and regular combat damage.)

Vehicles you control become artifact creatures until end of turn. Choose a Dwarf you control. Attach any number of Equipment you control to it.

When Armed with Proof enters, investigate twice. (To investigate, create a Clue token. It's an artifact with ", Sacrifice this artifact: Draw a card.")

Clues you control are Equipment in addition to their other types and have "Equipped creature gets +2/+0" and equip .

Enchant creature

Enchanted creature gets +1/+1.

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

You may cast Armor of Thorns as though it had flash. If you cast it any time a sorcery couldn't have been cast, the controller of the permanent it becomes sacrifices it at the beginning of the next cleanup step.

Enchant nonblack creature

Enchanted creature gets +2/+2.

, Sacrifice Armor Thrull: Put a +1/+2 counter on target creature.

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

: Armored Armadillo gets +X/+0 until end of turn, where X is its toughness.

Flying, vigilance

When Armored Kincaller enters, you may reveal a Dinosaur card from your hand. If you do or if you control another Dinosaur, you gain 3 life.

Armored Scrapgorger gets +3/+0 as long as it has three or more oil counters on it.

: Add one mana of any color.

Whenever Armored Scrapgorger becomes tapped, exile target card from a graveyard and put an oil counter on Armored Scrapgorger.

Flying

Whenever Armored Skyhunter attacks, look at the top six cards of your library. You may put an Aura or Equipment card from among them onto the battlefield. If an Equipment is put onto the battlefield this way, you may attach it to a creature you control. Put the rest of those cards on the bottom of your library in a random order.

Whenever Armory Automaton enters or attacks, you may attach any number of target Equipment to it. (Control of the Equipment doesn't change.)

Celebration — Armory Mice gets +0/+2 as long as two or more nonland permanents entered the battlefield under your control this turn.

Trample

Whenever you cast an Aura or Equipment spell, exile the top card of your library. You may play that card until the end of your next turn.

Whenever you crank Arms Depot, put two +1/+1 counters on target creature.

Attacking creatures get +2/+0 until end of turn.

Haste

Boast — : You may change Arni Brokenbrow's base power to 1 plus the greatest power among other creatures you control until end of turn. (Activate only if this creature attacked this turn and only once each turn.)

(As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.)

I — Target creature you control fights up to one target creature you don't control.

II — Add . Put two +1/+1 counters on up to one target creature you control.

III — You gain life equal to the greatest power among creatures you control.

Deathtouch

Other Assassins you control get +2/+0.

Disguise (You may cast this card face down for as a 2/2 creature with ward . Turn it face up any time for its disguise cost.)

Return target creature to its owner's hand.

Addendum — If you cast this spell during your main phase, draw a card.

When Arrogant Outlaw enters, if an opponent lost life this turn, each opponent loses 2 life and you gain 2 life.

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.

Arrows of Justice deals 4 damage to target attacking or blocking creature.

Each opponent discards two cards. If you control a Vampire, each opponent loses 2 life and you gain 2 life.

: Draw a card, then discard a card.

Whenever a permanent that shares an artist with another permanent you control enters, untap Artful Looter.

Haste

Whenever Arthur, Marigold Knight and at least one other creature attack, look at the top six cards of your library. You may put a creature card from among them onto the battlefield tapped and attacking. Put the rest on the bottom of your library in a random order. Return that creature to its owner's hand at end of combat.

Enchant artifact

Whenever enchanted artifact becomes tapped or a player activates an ability of enchanted artifact without in its activation cost, Artifact Possession deals 2 damage to that artifact's controller.

, Discard an artifact card: Search your library for an artifact card with mana value 1 or less, reveal it, put it into your hand, then shuffle.

Heroic — Whenever you cast a spell that targets Artisan of Forms, you may have Artisan of Forms become a copy of target creature, except it has this ability.

Destroy target artifact or enchantment. Scry 2. (Look at the top two cards of your library, then put any number of them on the bottom and the rest on top in any order.)

Arwen, Mortal Queen enters with an indestructible counter on it.

, Remove an indestructible counter from Arwen: Another target creature gains indestructible until end of turn. Put a +1/+1 counter and a lifelink counter on that creature and a +1/+1 counter and a lifelink counter on Arwen.

Vigilance

, : Create a 2/2 white Knight creature token with vigilance.

, , Tap X untapped Knights you control: Destroy target creature with power X or less.