mtg.wtf

Flying
Whenever you cast a creature spell without flying, conjure a duplicate of it into your hand. The duplicate perpetually gains flying. This ability triggers only once each turn.

Equipped creature gets +3/+0.
As long as equipped creature is attacking, it has first strike and must be blocked by a Dalek if able.
Equip legendary creature {1}
Equip {3}

Nitro-9 — Whenever Ace, Fearless Rebel attacks, you may sacrifice an artifact. When you do, put a +1/+1 counter on Ace, Fearless Rebel, then it fights up to one target creature defending player controls.
Doctor's companion

When Acererak the Archlich enters, if you haven't completed Tomb of Annihilation, return Acererak the Archlich to its owner's hand and venture into the dungeon.
Whenever Acererak the Archlich attacks, for each opponent, you create a 2/2 black Zombie creature token unless that player sacrifices a creature of their choice.

When Acererak the Archlich enters, if you haven't completed Tomb of Annihilation, return Acererak the Archlich to its owner's hand and venture into the dungeon.
Whenever Acererak the Archlich attacks, create a number of 2/2 black Zombie creature tokens equal to the number of opponents you have.

Freerunning {U}{B}
Menace
Other Assassins you control get +1/+1.

Flying, deathtouch
Megamorph {5}{B}{B}
When Acid-Spewer Dragon is turned face up, put a +1/+1 counter on each other Dragon creature you control.

Deathtouch
When Acidic Slime enters, destroy target artifact, enchantment, or land.

All Slivers have "{2}, Sacrifice this permanent: This permanent deals 2 damage to any target."

Flying, lifelink
Whenever Aclazotz attacks, each opponent discards a card. For each opponent who can't, you draw a card.
Whenever an opponent discards a land card, create a 1/1 black Bat creature token with flying.
When Aclazotz dies, return it to the battlefield tapped and transformed under its owner's control.

Heavy Rock Cutter — Whenever Acolyte Hybrid attacks, destroy up to one target artifact. If an artifact is destroyed this way, its controller draws a card.

{T}, Sacrifice another creature or artifact: Each opponent loses 1 life and you gain 1 life.

When Acolyte of Affliction enters, mill two cards, then you may return a permanent card from your graveyard to your hand.

Commander creatures you own have "The first Dragon spell you cast each turn costs {2} less to cast."

Renown 1
Whenever Acolyte of the Inferno becomes blocked by a creature, it deals 2 damage to that creature.

Whenever you cast a spell with a squirrel in its art, you get {A} (an acorn counter).
Whenever a Squirrel you control enters or dies, you get {A}.
{2}{B}, Pay X {A}: Target creature gets -X/-X until end of turn.
{G}, Pay X {A}: Target creature gets +X/+X until end of turn.

Enchant creature
Enchanted creature gets +2/+2 and is goaded.
Whenever enchanted creature attacks, defending player gets two rad counters.

Whenever Acquisition Octopus or equipped creature deals combat damage to a player, draw a card.
Reconfigure {2}

When Acquisitions Expert enters, target opponent reveals a number of cards from their hand equal to the number of creatures in your party. You choose one of those cards. That player discards that card.

Survival — At the beginning of your second main phase, if Acrobatic Cheerleader is tapped, put a flying counter on it. This ability triggers only once.

Target creature gets +1/+3 and gains flying until end of turn. Untap it.

Exile target creature you control, then return that card to the battlefield under its owner's control.
Draw a card.

Nontoken creatures you control which aren't from the MOM main set get +1/+0 and gain haste. (This includes Multiverse Legends, playtest cards, cards from Mystery Booster, and anything else not from the MOM main set.)

Gain control of target creature an opponent controls until end of turn. Untap that creature. It gains haste until end of turn.

Untap target creature. It gets +2/+2 until end of turn and can block an additional creature this turn.