msem-instigator

Flying
When Depraved Imp enters, if you control a legendary creature, put two +1/+1 counters on Depraved Imp.

When Doom Cultist dies, target player loses 2 life and you gain 2 life.

Deathtouch
At the beginning of each opponent's upkeep, that player loses 1 life.

Poisonous 1 (Whenever this creature deals combat damage to a player, that player gets a poison counter.)
Duskscale Marauder can't be blocked.

When Endrison Harvester enters, you may search your library for a Swamp card, reveal it, put it into your hand, then shuffle.
{1}{B}: Endrison Harvester gets +1/+1 until end of turn.

When False-Cure Smuggler enters, put a -1/-1 counter on another target creature.
{1}{U}, Sacrifice a creature: Proliferate. (Choose any number of permanents and/or players with counters on them, then give each another counter of each kind already there.)

Deathtouch (Any amount of damage this deals to a creature is enough to destroy it.)

When Festering Waif enters, each opponent mills two cards.
Persist (When this creature dies, if it had no -1/-1 counters on it, return it to the battlefield under its owner's control with a -1/-1 counter on it.)

{B}: Fetid Nibbler gains deathtouch until end of turn.

{3}{B}: Regenerate Flesh Hoarder Ghoul. (The next time this creature would be destroyed this turn, it isn't. Instead tap it, remove all damage from it, and remove it from combat.)

Fleshcrawler gets +1/+0 for each player that has lost life this turn.

At the beginning of your upkeep, if you have more life than an opponent, create a 1/1 black Insect Spirit creature token with flying.
{3}{B}: Each opponent loses X life and you gain X life, where X is the number of Clerics you control.

When Forgotten Wretch enters, you may sacrifice another creature. If you do, draw a card.

Whenever you cast a noncreature spell, each opponent loses 1 life and you gain 1 life.

Deathtouch
Whenever a creature an opponent owns dies, exile the top two cards of that player's library face down. For as long as those cards remain exiled, you may look at them, you may cast them, and you may spend mana as though it were mana of any type to cast them.

Menace (This creature can't be blocked except by two or more creatures.)
Infiltrate (Whenever one or more attacking creatures you control aren't blocked, this creature gets +1/+1 until end of turn.)

Flying, lifelink

When Inexperienced Martyr dies, each opponent loses 1 life.

At the beginning of your end step, if you lost 2 or more life this turn, create a 1/1 black Bird creature token with flying. If you lost 4 or more life this turn, instead create a 3/3 black Cat creature token with deathtouch. If you lost 6 or more life this turn, instead create a 5/5 black Golem creature token with trample.

Menace
Whenever one or more creature cards leave your graveyard, put a +1/+1 counter on Mausoleum Resident. It gains lifelink until end of turn.

Deathtouch
Sacrifice a creature: Target player mills two cards.

When Pilgrim of Bal enters, you may search your library and/or graveyard for an Aurashaper or Curse card, reveal it, and put it into your hand. If you searched your library, shuffle.

Deathtouch
When Poisoned Devout enters, choose one —
• Put a +1/+1 counter on Poisoned Devout.
• Create a colorless artifact token named Lotus Petal with “{T}, Sacrifice this artifact: Add one mana of any color.”

Deathtouch (Any amount of damage this deals to a creature is enough to destroy it.)
When Poisonheart Undead enters, you draw a card and you lose 1 life.

Deathtouch