This spell costs {3} less to cast if a creature died this turn. Flying, deathtouch

When Disciple of Perdition dies, choose one. If you have exactly 13 life, you may choose both. • You draw a card and you lose 1 life. • Exile target opponent's graveyard. That player loses 1 life.

{4}{B}: Return Durable Coilbug from your graveyard to your hand.

{T}, Sacrifice Liliana's Steward: Target opponent discards a card. Activate only as a sorcery.

Morbid — When Morkrut Banshee enters the battlefield, if a creature died this turn, target creature gets -4/-4 until end of turn.

Flying Morbid — At the beginning of each end step, if a creature died this turn, destroy target non-Demon creature.

{4}{B}{B}, Exile Suspicious Shambler from your graveyard: Create two 2/2 black Zombie creature tokens. Activate only as a sorcery.

Target creature gets -1/-1 until end of turn. Morbid — That creature gets -13/-13 until end of turn instead if a creature died this turn.

Mortuary Mire enters the battlefield tapped. When Mortuary Mire enters the battlefield, you may put target creature card from your graveyard on top of your library. {T}: Add {B}.

({T}: Add {B}.)