msem-instigator

Put two -1/-1 counters on target creature.

Whenever you cast a blue spell, you may cast creature spells this turn as though they had flash.
Whenever you cast a black spell, put up to one target card from your graveyard on top of your library.

Whenever you cast a spell during an opponent's turn, creatures you control get +0/+1 until end of turn.

Pressure—Reappropriate black. (You may cast this spell by exiling two black cards from your hand and/or graveyard if there are seven or more cards in your graveyard.)
Destroy target creature or planeswalker.

{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.)

{3}: Create a 9/9 colorless Angel artifact creature token with flying and lifelink.

Equipped creature gets +2/+2.
{1}: Attach Scoundrel's Aetherlock to target Rogue.
Equip {2}

Explosion Fanatic can't attack unless an opponent was dealt damage this turn.

Menace (This creature can't be blocked except by two or more creatures.)

When Sewer Dweller enters or dies, create a 1/1 black Rat creature token with “This creature can't block.”

{2}, Remove a +1/+1 counter from a creature you control: Draw a card.

Gain control of target creature until end of turn. Untap it. It gets +2/+0 and gains haste until end of turn.

At the beginning of your upkeep, each player loses 3 life unless they sacrifice a creature.
Sacrifice a creature: Fateseal 1. (Look at the top one cards of an opponent's library, then put any number on the bottom and the rest on top in any order.)

Divine in Blood deals 2 damage to target player, then that player draws four cards.

Lifelink
Experience (Whenever this creature attacks, if it has fewer than three +1/+1 counters on it, put a +1/+1 counter on it.)

Experience (Whenever this creature attacks, if it has fewer than three +1/+1 counters on it, put a +1/+1 counter on it.)
Whenever Primal Ruffian attacks, if it has a +1/+1 counter on it, other creatures you control get +1/+1 until end of turn. (If it had no counters on it when it attacked, this ability does not trigger.)

Choose one —
• Create two 1/1 white Soldier creature tokens. They gain haste until end of turn.
• Destroy target nonbasic land.

Target creature gets +2/+0 until end of turn and can't be blocked this turn.

Other Wolves and Werewolves you control have haste.
Leyran Hunting Pack gets +1/+1 for each non-Human Werewolf you control.

Noncreature spells you cast cost {1} less to cast.

Flying
At the beginning of your first main phase, you may put any number of land cards from your hand onto the battlefield, then draw a card for each land put onto the battlefield this way.

[+2]: Tap target permanent. It doesn't untap during its controller's next untap step.
[–3]: Xenocrata, Reality Breaker deals 3 damage to each creature and each other planeswalker.
[–10]: Draw seven cards. You get an emblem with “Whenever you cast an instant or sorcery spell, untap all permanents you control.”

Defender, reach
Sacrifice Cackling Jack: It deals 3 damage to any target.

Landfall — Whenever a land you control enters, create a 5/5 green Wurm creature token with trample.

{T}: Add {G} or {W}.
{T}, Sacrifice Sigil of Unity: Add {G}{W}.