msem-instigator

{T}, Pay 1 life, Sacrifice Abbey of Masquerades: Create a tapped Plains token, Island token, Swamp token, Mountain token, or Forest token.
Lifecycle {3} ({3}, Discard this card: Create two tapped 1/1 colorless Elemental creature tokens.)

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

Counter target activated ability from a nonland source. (Mana abilities can't be targeted.)
Lifecycle {3} ({3}, Discard this card: Create two tapped 1/1 colorless Elemental creature tokens.)

Destroy target creature with power 4 or greater. You gain 2 life.

Destroy target creature or planeswalker.
Crystallize. (Put a +1/+1 counter on a creature you control or create a Treasure.)

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

Glitch {1} (Remove one [restriction] for each time you pay the glitch cost.)
Create a token that's a copy of target [noncreature] permanent [you control].

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.

[+1]: Create a 1/1 black Faerie creature token with flying and a 2/2 white Spirit Noble creature token with lifelink.
[–X]: Target creature gets -X/-X until end of turn. Its controller loses X life.
[–7]: You get an emblem with “Whenever a permanent you control enters, you may have it gain flying and vigilance and become a 4/4 Angel creature in addition to its other types.” (This effect lasts indefinitely.)

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.

Choose land or nonland. Reveal cards from the top of your library until you reveal a card of the chosen kind. Put that card into your hand and the rest on the bottom of your library in a random order.

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.

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

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

Whenever equipped creature deals combat damage to a player, put a +1/+1 counter on it and draw a card.
Equip {1}

{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.

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.

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.

Target player mills X cards, where X is the number of cards in your graveyard.
Flashback {3}{U/B}{U/B} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Invigorate 5. (Choose a creature with the least power among creatures you control and put five +1/+1 counters on it.)