At the beginning of each end step, put a corpse counter on Scavenging Ghoul for each creature that died this turn.

Remove a corpse counter from Scavenging Ghoul: Regenerate Scavenging Ghoul.

: Exile target card from a graveyard. If it was a creature card, put a +1/+1 counter on Scavenging Ooze and you gain 1 life.

Partner with Nikara, Lair Scavenger

Vigilance

When Yannik, Scavenging Sentinel enters, exile another creature you control until Yannik leaves the battlefield. When you do, distribute X +1/+1 counters among any number of target creatures, where X is the exiled creature's power.