Warteye Witch

Whenever Warteye Witch or another creature you control dies, scry 1.

Sadistic Augermage

When Sadistic Augermage dies, each player puts a card from their hand on top of their library.

Falkenrath Noble

Flying
Whenever Falkenrath Noble or another creature dies, target player loses 1 life and you gain 1 life.

Dutiful Attendant

When Dutiful Attendant dies, return another target creature card from your graveyard to your hand.

Polluted Dead

When Polluted Dead dies, destroy target land.

Abyssal Gatekeeper

When Abyssal Gatekeeper dies, each player sacrifices a creature.

Thallid Soothsayer

Doomed Dissenter

When Doomed Dissenter dies, create a 2/2 black Zombie creature token.

Herald of the Dreadhorde

When Herald of the Dreadhorde dies, amass Zombies 2. (Put two +1/+1 counters on an Army you control. It's also a Zombie. If you don't control an Army, create a 0/0 black Zombie Army creature token first.)

Tattered Mummy

When Tattered Mummy dies, each opponent loses 2 life.

Tortured Existence

{B}, Discard a creature card: Return target creature card from your graveyard to your hand.

Ashen-Skin Zubera

When Ashen-Skin Zubera dies, target opponent discards a card for each Zubera that died this turn.

Ruin Rat

Deathtouch
When Ruin Rat dies, exile target card from an opponent's graveyard.

Deadbridge Shaman

When Deadbridge Shaman dies, target opponent discards a card.

Myr Sire

When Myr Sire dies, create a 1/1 colorless Phyrexian Myr artifact creature token.

Black Cat

When Black Cat dies, target opponent discards a card at random.

Drainpipe Vermin

When Drainpipe Vermin dies, you may pay {B}. If you do, target player discards a card.

Perilous Myr

When Perilous Myr dies, it deals 2 damage to any target.

Driver of the Dead

When Driver of the Dead dies, return target creature card with mana value 2 or less from your graveyard to the battlefield.

Dire Fleet Hoarder

When Dire Fleet Hoarder dies, create a Treasure token. (It's an artifact with "{T}, Sacrifice this artifact: Add one mana of any color.")

Deathbloom Thallid

When Deathbloom Thallid dies, create a 1/1 green Saproling creature token.

Putrid Goblin

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.)