msem-instigator

Rapport — Whenever Aelinn, Serpent's Voice and at least one other creature you control become tapped, reveal the top card of your library. You may cast that card. If you don't, put it into your graveyard and Aelinn, Serpent's Voice deals 2 damage to each opponent.

First strike, menace
Melee (Whenever this creature attacks, it gets +1/+1 until end of turn for each opponent you attacked this combat.)
At the beginning of each combat, you may pay {1}. When you do, another target creature gains melee until end of turn. (If a creature has multiple instances of melee, each triggers separately.)

{1}{U}: Aeon's Hand Cutthroat can't be blocked this turn.

Aeren Hellfire deals 4 damage to any target.
You may draw a card. If you do, discard a card.

Flying, double strike

Flying
As long as Aerial Tactician is tapped, Soldiers you control get +0/+1.
As long as Aerial Tactician is untapped, Soldiers you control get +1/+0.

Flying
At the beginning of your end step, untap another target creature you control.

{T}, Discard a card: Draw a card from each of your libraries.
{1}{U}{R}, {T}, Discard your hand: Return each Study card from your graveyard to your hand.

Archive 5 (As this enters the battlefield, shuffle the top five cards of your main library into a new face up library. Sacrifice this after the archived library is empty.)
You may play the top card of the archived library.
You can't play cards from your hand.

[+1]: Draw two cards. At the beginning of your next end step, discard your hand.
[–3]: You get an emblem with “At the beginning of your upkeep, put a loyalty counter on each Aerida planeswalker you control.”
[–5]: Take an extra turn after this one.

Create two 1/1 white Bird creature tokens with flying.

When Aerie Bell-Warden enters the battlefield, if it's in a pack, you gain 5 life. (Two or more creatures you control with equal power are in a pack.)

Flying, first strike

Enchant creature
When Aerie Watch enters the battlefield, draw a card.
Enchanted creature gets +1/+1 and has reach.

Flying
{2/U}{2/U}: Exile Aeriform Remnant. Return it to the battlefield under its owner's control at the beginning of the next end step.

Aeroblast deals 5 damage to target attacking or blocking creature.

Flying
Your opponents play with their hands revealed.
If an opponent would search their library for a card, you may have that player search their hand for that card instead.

Flash
When you cast Aether Ascendant, you may have it become a copy of target instant or sorcery spell. If you do, choose new targets for it. (Instant and sorcery spells don't enter the battlefield.)

Spells you cast from anywhere other than your hand cost {1} less to cast.
Whenever an opponent casts a spell with the same name as a card they own in exile or in their graveyard, that player loses 1 life and you gain 1 life.

Flying
Whenever Aether Crosser attacks, you may aetherize another target tapped creature you control. (To aetherize, create a token that's a copy of it, then exile that token.)
Crew 1

If a creature entering the battlefield under your control causes a triggered ability of that creature to trigger, you may exile it. If you do, that ability triggers an additional time.

Exile target creature, then return it to the battlefield under your control. Then sacrifice it.

Vision (Whenever this or another creature enters the battlefield under your control, reveal the top card of your library. Then you may put that card into your graveyard.)
Whenever Aether Recoverer envisions a creature card, return target noncreature card from your graveyard to your hand.

When Aether Road Caravan enters the battlefield, gain control of target nonland permanent with mana value 3 or less for as long as you control Aether Road Caravan.

Counter target spell unless its controller pays {3}. Its controller mills three cards.