msem-instigator

Equipped creature has vigilance. (Attacking doesn't cause that creature to tap.)
Equip {1}

Whenever a creature enters, return each other creature controlled by the same player to its owner's hand.

Abandoned Battlefield enters tapped if you control another nonbasic land.
{T}: Add {U} or {B}.

Abandoned Cairn enters tapped if you control another nonbasic land.
{T}: Add {B} or {R}.

Distorted (This creature can be blocked by tapped creatures but not untapped creatures.)

Abandoned Meadow enters tapped if you control another nonbasic land.
{T}: Add {R} or {G}.

{T}: Add {C}.
{3}, {T}, Sacrifice Abandoned Sanctuary: Search your library for a land card with a basic land type and put it onto the battlefield tapped, then shuffle.

Abandoned Skyroad enters tapped if you control another nonbasic land.
{T}: Add {W} or {U}.

Abandoned Wilderness enters tapped if you control another nonbasic land.
{T}: Add {G} or {W}.

Engorge (As this enters, mill three cards, then exile a card from among the milled cards.)
When Abhorrent Exhumer enters, if it engorged a creature card, you may return target creature card from your graveyard to your hand.

Put a +1/+1 counter on target creature. Prevent all combat damage other creatures would deal this turn.

Creature tokens you control have hexproof.
{3}{G}: Put a +1/+1 counter on target creature token.

At the beginning of your end step, you may pay {W}. If you do, exile target creature you control, then return that card to the battlefield under your control.

Return target creature card from your graveyard to the battlefield.
Fuse (You may cast one or both halves of this card from your hand.)

Abrupt Explosion deals X damage to any target.
Metamorph {X}{R} (You may cast this card face down as a 2/2 creature for {3}. Turn it face up and cast it at any time for its metamorph cost.)

Destroy target artifact or land.

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.

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.

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

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

{T}: Add {C}.
{T}, Exile two cards from your graveyard: Add {B} or {R}.

Draw three cards. Discard two cards at the beginning of the next end step.

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.

Menace (This creature can't be blocked except by two or more creatures.)
When Achet-Aton, Living God enters, if your life total is less than 5, your life total becomes 5.
As long as you have 5 or more life, damage that would reduce your life total to less than 5 reduces it to 5 instead.