Shepherd of Rot

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

Carrion Feeder

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

When this creature enters, each player loses 1 life.

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

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

Menace (This creature can't be blocked except by two or more creatures.)

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

Target player reveals their hand. You choose an artifact or creature card from it. That player discards that card.

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

When this creature dies, target creature an opponent controls gets -1/-1 until end of turn.

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

Return target creature card from your graveyard to your hand.

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