mtg.wtf

{2}{U}, {T}: Copy target activated or triggered ability you control. You may choose new targets for the copy.
Ultimate Sacrifice — {1}{U}, Sacrifice Adric: Counter target activated or triggered ability.
Doctor's companion

Ward {2}
If one or more tokens would be created under your control, twice that many of those tokens are created instead.

Flying, lifelink, haste

When Adventurer Beguiler enters the battlefield, choose target creature card on an adventure. That card is now on an adventure for you. (You can cast it from exile and your opponent can't.)

When Adéwalé enters, reveal the top six cards of your library. Put an Assassin, Pirate, or Vehicle card from among them into your hand and the rest on the bottom of your library in a random order.
Whenever a Vehicle you control deals combat damage to a player, you may return Adéwalé from your graveyard to your hand.

Whenever a creature or planeswalker an opponent controls is dealt excess damage, if a Giant, Wizard, or spell you controlled dealt damage to it this turn, draw a card.

Flying
When Aegis Angel enters, another target permanent gains indestructible for as long as you control Aegis Angel.

Flying
Whenever Aerial Extortionist enters or deals combat damage to a player, exile up to one target nonland permanent. For as long as that card remains exiled, its owner may cast it.
Whenever another player casts a spell from anywhere other than their hand, draw a card.

Flying
Whenever Aerial Surveyor attacks, if defending player controls more lands than you, search your library for a basic Plains card, put it onto the battlefield tapped, then shuffle.
Crew 2

Flying
When Aerialephant enters, you get {TK}, then you may put a sticker on a nonland permanent you own.

Flying
Discard a card: Switch Aeromoeba's power and toughness until end of turn.

Aeronaut Tinkerer has flying as long as you control an artifact.

When Aether Channeler enters, choose one —
• Create a 1/1 white Bird creature token with flying.
• Return another target nonland permanent to its owner's hand.
• Draw a card.

When Aether Hub enters, you get {E}.
{T}: Add {C}.
{T}, Pay {E}: Add one mana of any color.

If you would get one or more {E}, you get twice that many {E} instead.
{T}: You get {E}, then you may pay one or more {E}. If you do, create an X/X black Aetherborn creature token, where X is the amount of {E} paid this way.

Revolt — As long as a permanent you controlled left the battlefield this turn, if a source you control would deal noncombat damage to an opponent or a permanent an opponent controls, it deals that much damage plus 2 instead.
Whenever you get one or more {E}, Aether Revolt deals that much damage to any target.

Choose one —
• Tap all Spirits.
• Tap all non-Spirit creatures.

Choose target spell. You get {E}{E}, then you may pay any amount of {E}. Counter that spell unless its controller pays {1} for each {E} paid this way.

At the beginning of your upkeep, you may put a charge counter on Aether Vial.
{T}: You may put a creature card with mana value equal to the number of charge counters on Aether Vial from your hand onto the battlefield.

Whenever you cast a spell, you gain 1 life for each spell you've cast this turn.
Pay 50 life: Aetherflux Reservoir deals 50 damage to any target.

Whenever Aethergeode Miner attacks, you get {E}{E}.
Pay {E}{E}: Exile Aethergeode Miner, then return it to the battlefield under its owner's control.

Return all attacking creatures to their owner's hand.

Flying
When Aethersphere Harvester enters, you get {E}{E}.
Pay {E}: Aethersphere Harvester gains lifelink until end of turn.
Crew 1

Flying
At the beginning of your upkeep, you get {E}{E}{E}.
Pay eight {E}: Return all other creatures to their owners' hands. Activate only as a sorcery.

Flying
Whenever Aetherstorm Roc or another creature you control enters, you get {E}.
Whenever Aetherstorm Roc attacks, you may pay {E}{E}. If you do, put a +1/+1 counter on it and tap up to one target creature defending player controls.