Flying

Whenever Ancient Silver Dragon deals combat damage to a player, roll a d20. Draw cards equal to the result. You have no maximum hand size for the rest of the game.

Flying

Delirium — Whenever Angel of Deliverance deals damage, if there are four or more card types among cards in your graveyard, exile target creature an opponent controls.

Flash; 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.)

Flying

When Angel of Salvation enters, prevent the next 5 damage that would be dealt this turn to any number of targets, divided as you choose.

Whenever you're dealt damage, you may put that many charge counters on Angelheart Vial.

, , Remove four charge counters from Angelheart Vial: You gain 2 life and draw a card.

Target creature or planeswalker you control gains protection from colorless or from the color of your choice until end of turn. If it's a creature, put a +1/+1 counter on it. (It can't be blocked, targeted, dealt damage, enchanted, or equipped by anything with that quality.)

Flying

As long as you control a Human, Angelic Overseer has hexproof and indestructible.

An-Havva Constable's toughness is equal to 1 plus the number of green creatures on the battlefield.

: Add .

, : Add .

, : Add or .

Anje's Ravager attacks each combat if able.

Whenever Anje's Ravager attacks, discard your hand, then draw three cards.

Madness (If you discard this card, discard it into exile. When you do, cast it for its madness cost or put it into your graveyard.)

Flying

Whenever a creature attacks, you may pay . When you do, put a +1/+1 counter on that creature.

Swampwalk (This creature can't be blocked as long as defending player controls a Swamp.)

Players have no maximum hand size.

At the beginning of each player's draw step, that player draws an additional card, then discards a card.

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.)

Flying

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

Flying

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

Search the Room — : Roll a d20.

1–9 | Draw a card.

10–20 | Look at the top three cards of your library. Put one of them into your hand and the rest on the bottom of your library in any order.

, Remove X +1/+1 counters from Arcbound Javelineer: It deals X damage to target attacking or blocking creature.

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.)

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.)

Flying

At the beginning of each opponent's end step, that player chooses up to two creatures they control, then sacrifices the rest.

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.

If an opponent searched their library this turn, you may pay rather than pay this spell's mana cost.

Target opponent mills thirteen cards.

When your commander deals combat damage to a player, if there is no monarch, you become the monarch.

At the beginning of the monarch's end step, that player draws a card.

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.)

Archway of Innovation enters tapped unless you control an Island.

: Add .

, : The next spell you cast this turn has improvise. (Your artifacts can help cast that spell. Each artifact you tap after you're done activating mana abilities pays for .)

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.)

, : Target snow land is no longer snow.

, : Target nonsnow basic land becomes snow.

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

, : Return target artifact card from your graveyard to your hand.

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

Return target artifact or enchantment card from your graveyard to your hand.

Return target artifact card from your graveyard to the battlefield.

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

At the beginning of your upkeep, draft a card from Arms Scavenger's spellbook, then exile it. Until end of turn, you may play that card.

If four or more creatures are attacking, you may pay rather than pay this spell's mana cost.

Arrow Volley Trap deals 5 damage divided as you choose among any number of target attacking creatures.

Change the text of target spell or permanent by replacing all instances of one creature type with another. The new creature type can't be Wall. (This effect lasts indefinitely.)

Arvinox, the Mind Flail isn't a creature unless you control three or more permanents you don't own.

At the beginning of your end step, exile the bottom card of each opponent's library face down. For as long as those cards remain exiled, you may look at them, you may cast permanent spells from among them, and you may spend mana as though it were mana of any color to cast those spells.

Hexproof

Whenever you roll a die, put a number of luck counters on As Luck Would Have It equal to the result. Then if there are 100 or more luck counters on As Luck Would Have It, you win the game. (Count both rolls if you reroll a die.)

Flying (This creature can't be blocked except by creatures with flying or reach.)

Other black creatures get +1/+1.

Nonblack creatures get -1/-1.

Enchant creature

Enchanted creature has flying, first strike, and vigilance.

As Ashling's Prerogative enters, 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 tapped.

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."

At the beginning of each player's upkeep, if that player has no cards in hand, you draw a card and you lose 1 life.

Madness (If you discard this card, discard it into exile. When you do, cast it for its madness cost or put it into your graveyard.)

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.)

Flying

Whenever Attentive Skywarden deals combat damage to a player or battle, transform up to one target Incubator token you control.

(Transforms from Journey to Eternity.)

: Add one mana of any color.

, : Return target creature card from your graveyard to the battlefield.

Flying

Foretell (During your turn, you may pay and exile this card from your hand face down. Cast it on a later turn for its foretell cost.)

Flying, vigilance, haste

Whenever a player attacks with three or more creatures, you draw a card.

Whenever a player attacks with five or more creatures, Aurelia, the Law Above deals 3 damage to each of your opponents and you gain 3 life.

As long as Auriok Glaivemaster is equipped, it gets +1/+1 and has first strike.

When Auriok Survivors enters, you may return target Equipment card from your graveyard to the battlefield. If you do, you may attach it to Auriok Survivors.

Spells you control can't be countered by blue or black spells this turn, and creatures you control can't be the targets of blue or black spells this turn.