Bone Shards

As an additional cost to cast this spell, sacrifice a creature or discard a card.
Destroy target creature or planeswalker.

Swamp

Nihil Spellbomb

{T}, Sacrifice this artifact: Exile target player's graveyard.
When this artifact is put into a graveyard from the battlefield, you may pay {B}. If you do, draw a card.

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.")

Bloodflow Connoisseur

Sacrifice a creature: Put a +1/+1 counter on this creature.

Doomed Dissenter

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

Final Flourish

Kicker—Sacrifice an artifact or creature. (You may sacrifice an artifact or creature in addition to any other costs as you cast this spell.)
Target creature gets -2/-2 until end of turn. If this spell was kicked, that creature gets -6/-6 until end of turn instead.

Annihilating Glare

As an additional cost to cast this spell, pay {4} or sacrifice an artifact or creature.
Destroy target creature or planeswalker.

Mortician Beetle

Whenever a player sacrifices a creature, you may put a +1/+1 counter on this creature.

Perilous Myr

When this creature dies, it deals 2 damage to any target.

Gixian Infiltrator

Whenever you sacrifice another permanent, put a +1/+1 counter on this creature.

Serrated Scorpion

When this creature dies, it deals 2 damage to each opponent and you gain 2 life.

Fleshbag Marauder

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

Vermin Gorger

{T}, Sacrifice another creature: Each opponent loses 2 life and you gain 2 life.

Innocent Blood

Each player sacrifices a creature of their choice.

Carrion Feeder

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