msem-instigator

Target creature gets +X/+0 and gains trample until end of turn.

{1}{R}: Crashcaller Nereid gets +1/+0 and gains trample until end of turn.

First strike
Whenever Creed, Eternal Straggler attacks, exile the top card of your library. You may play that card this turn, and that spell costs {2} less to cast.

Hexproof
Whenever one or more cards are put into your graveyard from anywhere, Creeping Hidebehind gets +1/+0 until end of turn.

Crossfire deals 1 damage to each creature.
Quickdraw {2}{R} (When a creature you control blocks or becomes blocked, you may cast this spell for {2}{R}.)

Extort (Whenever you cast a spell, you may pay {W/B}. If you do, each opponent loses 1 life and you gain that much life.)
Whenever Crowd Favorite extorts a spell, put a +1/+1 counter on Crowd Favorite.

Distorted (This creature can be blocked by tapped creatures but not untapped creatures.)
Other creatures you control with distorted get +2/+2.

Reach
Scarecrow spells you cast cost {1} less to cast.

Primal {1}{B} (During your turn, you may cast this spell for {1}{B} instead of playing a land.)
Each opponent discards two cards.

{1}{B}, Discard Crusher Claw: Target creature gains winnow until end of turn. (Damage dealt to it also causes its controller to lose that much life.)

When Crux Pinnacle enters, for each color, exile up to one target permanent of that color until Crux Pinnacle leaves the battlefield.
Whenever a player casts a spell, if there are five or more spells on the stack, you win the game.

Whenever you sacrifice a permanent, scry 1.
{1}, Sacrifice a nonland permanent: You gain 1 life.

Reflections you control get +2/+2 until end of turn. Other creatures you control get +1/+1 until end of turn.

Distorted (This creature can be blocked by tapped creatures but not untapped creatures.)
Whenever a Reflection you control becomes the target of a spell or ability, it gains indestructible until end of turn.

Whenever Culling Claw attacks, target creature gains winnow until end of turn. (Damage dealt to it also causes its controller to lose that much life.)

Equipped creature has “{T}, Sacrifice this creature: Return target creature card from your graveyard to the battlefield.”
Equip {5}
Equip {1}{B}{B}

Flying
When Curator of Curios enters, draw a card for each glory counter you have.

Play with the bottom card of your library revealed.
Whenever you cast a spell or play a land from your hand that shares a type with the bottom card of one or more of your libraries, you may cast each of those cards without paying its mana cost or put it onto the battlefield if it's a land.

Whenever Current Shaper perseveres, it deals 1 damage to each opponent. (A creature perseveres when it survives damage.)

Counter target spell with mana value 3 or less.

Return all creature cards from your graveyard to the battlefield. Those creatures gain haste until end of turn.
At the beginning of the next end step, you lose the game.

Whenever a creature enters this turn, destroy it.

Whenever Daisite Express attacks, draw a card.
Whenever Daisite Express deals combat damage to a player, discard a card.

Protection from Dusk Chord (This creature can't be blocked, targeted, dealt damage, or enchanted by anything named Dusk Chord.)
{1}{W}: Target Reflection's base toughness becomes equal to Dawn Chord's toughness until end of turn.

At the beginning of your upkeep, you may put a +1/+1 counter on target creature.