Lanaya Versace, Reaper

Haste, menace
Whenever Lanaya Versace, Reaper attacks, sacrifice another creature. When you do, Lanaya Versace, Reaper gains +X/+0 until end of turn, where X is the sacrificed creatures' power.

At the beginning of your end step, if a creature you controlled died this turn, create a 3/1 black Spirit token with menace and "When this creature enters
the battlefield, it fights target creature you don't control".