Corrupted Conviction

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

Swamp

Bojuka Bog

This land enters tapped.
When this land enters, exile target player's graveyard.
{T}: Add {B}.

Diabolic Edict

Target player sacrifices a creature of their choice.

Ghoulcaller's Chant

Choose one —
• Return target creature card from your graveyard to your hand.
• Return two target Zombie cards from your graveyard to your hand.

Festering Mummy

When this creature dies, you may put a -1/-1 counter on target creature.

Dark Ritual

Duress

Target opponent reveals their hand. You choose a noncreature, nonland card from it. That player discards that card.

Ghoulraiser

When this creature enters, return a Zombie card at random from your graveyard to your hand.

Festergloom

Nonblack creatures get -1/-1 until end of turn.

Defile

Target creature gets -1/-1 until end of turn for each Swamp you control.

Shambling Ghast

When this creature dies, choose one —
• Target creature an opponent controls gets -1/-1 until end of turn.
• Create a Treasure token. (It's an artifact with "{T}, Sacrifice this token: Add one mana of any color.")

Carrion Feeder

This creature can't block.
Sacrifice a creature: Put a +1/+1 counter on this creature.

Shepherd of Rot

{T}: Each player loses 1 life for each Zombie on the battlefield.

Vengeful Dead

Whenever this creature or another Zombie dies, each opponent loses 1 life.

Village Rites

Ostracize

Target opponent reveals their hand. You choose a creature card from it. That player discards that card.

Gempalm Polluter

Cycling {B}{B} ({B}{B}, Discard this card: Draw a card.)
When you cycle this card, you may have target player lose life equal to the number of Zombies on the battlefield.