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.)

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.

Ashen-Skin Zubera

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

Falkenrath Noble

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

Polluted Dead

When Polluted Dead dies, destroy target land.

Myr Sire

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

Driver of the Dead

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

Tortured Existence

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

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.)

Drainpipe Vermin

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

Sadistic Augermage

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

Perilous Myr

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

Thallid Soothsayer

Tattered Mummy

When Tattered Mummy dies, each opponent loses 2 life.

Deadbridge Shaman

When Deadbridge Shaman dies, target opponent discards a card.

Abyssal Gatekeeper

When Abyssal Gatekeeper dies, each player sacrifices a creature of their choice.

Warteye Witch

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

Ruin Rat

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

Screeching Buzzard

Flying
When Screeching Buzzard dies, each opponent discards a card.

Dutiful Attendant

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