msem-instigator

When Hand of the Murder enters, if you control a creature with a +1/+1 counter on it, create a 1/1 black Bird creature token with flying.

Target creature you control deals damage equal to its power to any target. Then put a -1/-1 counter on that creature.

As Danaj Fortress enters, you may pay 1 life. If you don't, Danaj Fortress enters tapped.
Satrapies you control have “{T}: Add {G}.”

As an additional cost to cast this spell, tap an untapped artifact you control.
Target player discards two cards.

Return target creature or planeswalker card from your graveyard to the battlefield.
Flashback—{1}{B}{B}, Sacrifice a creature or a planeswalker. (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Whenever a creature enters without counters during your next turn, you may put two +1/+1 counters on it. (Then exile this card. You may cast the creature later from exile.)

Flying
When Boundless Hopes enters, another target creature you control gains flying until end of turn.
Fleeting {U} (You may cast this spell for its fleeting cost. If you do, sacrifice it at the beginning of the next end step.)

Gestalt (When this or another creature you control enters, you may merge it with the one in play, keeping counters and attachments. They become the permanent on top plus all abilities from under it.)
This permanent gets +2/+2 for each card and token merged with it.

Target creature you control gets +3/+3 and gains trample until end of turn. Other creatures you control gain trample until end of turn.

Master Assassin can't be blocked by creatures with odd mana values. (Zero is even. This creature's mana value is 2.)
Whenever you cast a spell during an opponent's turn, put a +1/+1 counter on Master Assassin. You may have it phase out.

Glitch {2} (Remove one [restriction] for each time you pay the glitch cost.)
Improbable Aim deals damage to target creature or planeswalker equal to the number of [instant and sorcery] cards in your graveyard.

As an additional cost to cast this spell, discard a nonland card.
Target player reveals their hand. You choose a nonland card from it. That player discards that card.

When Sullen Bonecrusher enters, it deals damage to any target equal to the number of Warriors you control and you gain that much life.

When Heretic's Vow enters, create two 1/1 white Cleric creature tokens with lifelink.
Once each turn, when you gain life, you may put a +1/+1 counter on target creature you control.

When Valley's Majesty enters, draw a card, then choose a card name.
Nonbasic lands you control with the chosen name have “{T}: Add two mana of any one color.”

Create two 3/1 red and white Goblin Soldier creature tokens with haste. Creatures you control gain indestructible until end of turn.

Bleed {1}{U}{U} (You may cast this spell for its bleed cost if an opponent has lost life this turn.)
Look at the top seven cards of your library. Put two of those cards into your hand and the rest on the bottom of your library in any order.

{T}: Scry 1.
{1}{U}, {T}: Draw a card.

Whenever Bloodthirsty Insurgent attacks, it gets +2/+0 until end of turn.

Creature cards can't leave the graveyard or exile.
Players can't cast spells from graveyards or from exile.

Attacking creatures you control get +1/+0.

Veteran's Study enters tapped.
When Veteran's Study enters, look at the top card of your library. You may put it into your graveyard.
{T}: Add {R} or {W}.

Equipped creature has hexproof.
Whenever equipped creature dies, draw a card.
Equip {2}

Counter target spell unless its controller pays {2}.
Lifecycle {3} ({3}, Discard this card: Create two tapped 1/1 colorless Elemental creature tokens.)