Martyr's Cause

Sacrifice a creature: The next time a source of your choice would deal damage to any target this turn, prevent that damage.

Lampad of Death's Vigil

{1}, Sacrifice a creature: Each opponent loses 1 life and you gain 1 life.

{B}, Sacrifice a creature: Destroy target nonblack creature.

{1}{B}, Sacrifice a creature: You gain 1 life and draw a card.

Sacrifice a creature: Regenerate target creature.

{B}, Sacrifice a creature: Target opponent reveals their hand. You choose a card from it. That player discards that card. Activate only as a sorcery.

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

{1}, Sacrifice a creature: The next time a source of your choice would deal damage to any target this turn, prevent that damage.