msem-instigator

Gain control of target noncreature, nonland permanent with mana value X.

Bleed {1}{U/R} (You may cast this spell for its bleed cost if an opponent has lost life this turn.)
Copy target instant or sorcery spell. You may choose new targets for the copy.

Exile any number of target cards in exile. (They become new objects that have just been exiled.)
Draw a card.

Exile up to one target card from a graveyard. If you do, create a 1/1 green Spirit creature token.
Coalesce {7}{G} (You may cast this from your graveyard for {7}{G}. If you do, put it onto the battlefield as a Horror creature after it resolves. Exile it if it would leave the battlefield or not resolve.)

Search your library for a basic land card and put it onto the battlefield tapped, then shuffle. You gain 1 life for each land you control.

Abyss Howler must be blocked if able.
Whenever Abyss Howler becomes blocked, defending player loses 2 life and you gain 2 life.

Trample (This creature can deal excess combat damage to the player or planeswalker it's attacking.)
Cycling {G} ({G}, Discard this card: Draw a card.)

Deathtouch
Abyss Surger enters the battlefield with X +1/+1 counters on it, where X is the greatest power among creature cards in your graveyard.

Wither (This deals damage to creatures in the form of -1/-1 counters.)
Abyssal Accuser must be blocked if able.

Haste
Disgraced 1 (This enters with a -1/-1 counter. Whenever it deals combat damage to a player, remove all -1/-1 counters from it.)

Abyssal Crypt enters the battlefield tapped.
{T}: Add {U} or {B}.
{2}{U}{B}, {T}, Sacrifice Abyssal Crypt: Draw a card.

Wither (This deals damage to creatures in the form of -1/-1 counters.)
When Abyssal Familiar dies, it deals 1 damage to you and to any target.

When Abyssal Nightcaster enters the battlefield, each player exiles a card from their hand.
When Abyssal Nightcaster dies, you may play cards you don't own from exile this turn.

When Abyssal Pact enters the battlefield, you draw two cards and each player loses 2 life.
Players can't gain life.
Damage can't be prevented.

Whenever Abyssal Stalker attacks, defending player discards a card at random.
When Abyssal Stalker dies, you may choose a creature. If you do, exile Abyssal Stalker. When the chosen creature leaves the battlefield, return Abyssal Stalker from exile to the battlefield tapped.

Flying
Whenever Acabo, the Fabled Falcon attacks, you choose how up to one target creature an opponent controls blocks this turn.

After a player chooses two or more modes while casting a spell, you may pick one of those modes. That mode is no longer chosen. (That player doesn't pick targets or pay costs related to that mode. If a mode is chosen multiple times, only one instance of that mode is lost.)

When Academy Renegade enters the battlefield, it deals damage to target creature you don't control equal to the number of Wizards you control.
Whenever Academy Renegade attacks, it deals damage to defending player equal to the number of Wizards you control.

Exile target creature or planeswalker and up to one target card from its controller's graveyard.

Enchant creature
Enchanted creature gets +2/+2. Other creatures you control get +1/+1.

Menace
Cadence (Whenever you cast a spell, if its mana value is greater than this creature's power, put a +1/+1 counter on this creature.)

If a nontoken creature you don't control would die, exile it instead.
Once each turn, you may cast a card exiled with Accursed Existence.

Flying
{2}{W}, Exile a non-Spirit creature card from your graveyard: Create a 1/1 white Spirit creature token with flying.

Non-Human creatures you control get +1/+0.

{T}, Pay 1 life: Surveil 1. (Look at the top card of your library. You may put that card into your graveyard.)
At the beginning of your end step, if your life total is less than 5, sacrifice Achet-Aton's Vizier. If you do, create a 4/4 black Demon creature token with flying.