msem-instigator

Enchant creature
Enchanted creature gets +2/+1 and has menace.

Creatures you control get +2/+1 until end of turn.
Cycling {1}{W} ({1}{W}, Discard this card: Draw a card.)

Flying
Ward {2} (Whenever this creature becomes the target of a spell or ability an opponent controls, counter it unless that player pays {2}.)
Angel of the Flock's power and toughness are each equal to the number of creatures you control.

Jara Favored gets +2/+2 as long as you've lost life this turn.

({T}: Add {R} or {G}.)
Flourishing Crevasse enters tapped unless you control a basic Mountain or a basic Forest.

Reverberate—Sacrifice a Swamp. (When you cast this spell, copy it if you paid its reverberate cost.)
All creatures get -2/-2 until end of turn.

Return up to two target creature cards from your graveyard to your hand. You lose 2 life.

{T}, Pay 1 life: Add {G}.
{8}{G}, Exile Singers' Grove from your hand: Creatures you control get +7/+7 until end of turn.

{2}{G}: Exile up to three cards from graveyards. Autocrat X, where X is the number of cards exiled this way. (If you don't control an autocrat, put X +1/+1 counters on this. It becomes an autocrat until it has no +1/+1 counters on it.)
Whenever Hegemony Monarch attacks, you may exile target card from a graveyard. If you do, untap it and it gains trample until end of turn.

Enchant opponent
Whenever enchanted player is attacked, you may discard a card. If you do, draw a card.

Enchant creature
Enchanted creature gets +2/+2.
Whenever an enchanted creature you control deals combat damage to a player, you may put a permanent card from your graveyard on top of your library.

{T}: Add {C}.
{T}: Add {C} for each six cards in your graveyard.

Scholar of the Staff can't block.
Inspired — Whenever Scholar of the Staff becomes untapped, up to one target creature can't block this turn.

When Alchemist's Kit enters, you may return target creature to its owner's hand.
2U, Sacrifice Alchemist's Kit: Draw a card.

Return target nonland permanent to its owner's hand. If you control an artifact, draw a card.

Target creature you control deals damage equal to its power to target creature you don't control.

[+1]: Up to two target creatures you control each get +1/+0 and gain first strike until end of turn.
[0]: You may sacrifice a creature. If you do, Shala Na, Urshadi Apostate deals 3 damage to any target.
[–3]: Discard your hand, then draw three cards.

Whenever you cast a noncreature spell, you may have target player mill two cards. Then if a player has twenty or fewer cards in their library, put a +1/+1 counter on Living Atrocity.

Flying
Morph {1}{U} (You may cast this card face down as a 2/2 creature for {3}. Turn it face up any time for its morph cost.)
When Ishim of the Mists is turned face up, turn all other face-up creature you control face down.

Hexproof
Whenever Twinning Psionic harnesses an instant or sorcery spell, you may copy that spell. If you do, you may choose new targets for the copy.

As an additional cost to cast this spell, sacrifice a creature.
Exile target creature.

Converge — Let It Burn enters with a charge counter on it for each color of mana spent to cast it.
{1}{R}, Remove a charge counter from Let It Burn: It deals 3 damage to any target.
When there are no charge counters on Let It Burn, return it to its owner's hand.

Flash
{4}, {T}, Sacrifice this artifact: It deals 3 damage to target creature or planeswalker.

When Militant's Standard enters, draw a card if you control a Merfolk.
Equipped creature gets +2/+1.
Equip {2}

You may play cards exiled with Azamir planeswalkers.
[+2]: Search each player's library for a card and exile it. Shuffle each library searched this way.
[–3]: Each opponent chooses a permanent they control for each permanent type, then exiles those permanents.
[–8]: Exile all cards your opponents own from outside the game. Until end of turn, you may cast spells without paying their mana costs and you may play cards exiled with Azamir planeswalkers.