Gravedigger

When this creature enters, you may return target creature card from your graveyard to your hand.

Zulaport Cutthroat

Whenever this creature or another creature you control dies, each opponent loses 1 life and you gain 1 life.

Death Baron

Skeletons you control and other Zombies you control get +1/+1 and have deathtouch. (Any amount of damage they deal to a creature is enough to destroy it.)

Filigree Familiar

When this creature enters, you gain 2 life.
When this creature dies, draw a card.

Murder

Stitcher's Supplier

When this creature enters or dies, mill three cards. (Put the top three cards of your library into your graveyard.)

Reassembling Skeleton

{1}{B}: Return this card from your graveyard to the battlefield tapped.

Gruesome Fate

Each opponent loses 1 life for each creature you control.

Rot Hulk

Menace
When this creature enters, return up to X target Zombie cards from your graveyard to the battlefield, where X is the number of opponents you have.

Fleshbag Marauder

When this creature enters, each player sacrifices a creature of their choice.

Doomed Dissenter

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

Cruel Revival

Destroy target non-Zombie creature. It can't be regenerated. Return up to one target Zombie card from your graveyard to your hand.

Liliana's Mastery

Zombies you control get +1/+1.
When this enchantment enters, create two 2/2 black Zombie creature tokens.

Tattered Mummy

When this creature dies, each opponent loses 2 life.

Lord of the Accursed

Other Zombies you control get +1/+1.
{1}{B}, {T}: All Zombies gain menace until end of turn.

Thallid Soothsayer

Infectious Horror

Whenever this creature attacks, each opponent loses 2 life.

Blood Divination

As an additional cost to cast this spell, sacrifice a creature.
Draw three cards.

Graveyard Marshal

{2}{B}, Exile a creature card from your graveyard: Create a tapped 2/2 black Zombie creature token.

Open the Graves

Whenever a nontoken creature you control dies, create a 2/2 black Zombie creature token.

Swamp

Bone Splinters

As an additional cost to cast this spell, sacrifice a creature.
Destroy target creature.