msem-instigator

Equipped creature gets +2/+0.
Equipped creature has first strike as long as it's attacking.
Equip {2}

Whenever Quick-Witted Slayer deals combat damage to a player, you draw a card and you lose 1 life.

Target creature becomes the color or colors of your choice until end of turn.
Draw a card.

The next sorcery spell you cast this turn can be cast as though it had flash.
Draw a card.

Destroy target creature or planeswalker. Create a tapped colorless land token named Fading Rift with “{T}, Sacrifice this land: Add one mana of any color.”

Reverberate {2} (When you cast this spell, copy it if you paid its reverberate cost.)
Draw a card.

Spells your opponents cast this turn cost {1} more to cast. (Then exile this card. You may cast the creature later from exile.)

Counter target spell. If a noncreature spell is countered this way, scry 2.

{T}: Quill Sniper deals 1 damage to any target if it's an opponent or if you control a storied permanent. (Enchantments and legendary permanents are storied.)

When Quillback dies, you may shuffle him into his owner's library. If you do, return up to one target Shaman creature card and up to one target non-Shaman creature card from your graveyard to your hand.

When Qulai enters, look at the top six cards of your library. You may reveal a Fox card from among them and put it into your hand. Put the rest on the bottom of your library in any order.
Sacrifice Qulai: Foxes you control gain hexproof and indestructible until end of turn.

When R-12 Lone Digger enters, it deals 3 damage to target player or planeswalker.

Put a +1/+1 counter on each creature you control that entered this turn. (Then exile this card. You may cast the creature later from exile.)

Deathtouch
Whenever a creature dealt damage by Rabid Rodent this turn dies, put a +1/+1 counter on Rabid Rodent.
{2}, Remove a +1/+1 counter from Rabid Rodent: Regenerate Rabid Rodent.

When Rabudan Chiseler enters, you may search your library for an Aura or Equipment card, reveal it, put it into your hand, then shuffle.

Enchant opponent
Whenever enchanted player is attacked, choose an attacking creature. Create a tapped and attacking token that's a copy of it. Exile the token at the beginning of the next end step.

Enchant nonland permanent
Enchanted permanent can't attack and its activated abilities can't be activated.

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

Flying
Whenever a creature you don't control deals damage, its controller sacrifices it unless that player pays {2}.

Whenever an enchantment you control enters, create a 1/1 colorless Construct Actor creature token.
Token creatures you control have vigilance.

Enchant creature
Enchanted creature gets +3/-3.

{T}: Add {R} or {W}. You lose 1 life unless you have less life than an opponent.

When Radiant Rebuker enters, exile target nonland permanent an opponent controls until Radiant Rebuker leaves the battlefield.

Target creature gets +2/+2 until end of turn. If it's multicolored, it also gains indestructible until end of turn.

Radiant Vistas enters tapped.
{T}: Add {W} or {U}.
{W}{U}, {T}, Sacrifice Radiant Vistas: Conjure a card named Data-Point into your hand. (It's a sorcery that costs {2} with “Draw a card.”)