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.
Legalities
Not Legal
Standardbrawl
Brawl
Penny
Future
Modern
Pauper
Alchemy
Pioneer
Historic
Standard
Gladiator
Oldschool
Historicbrawl
Explorer
Timeless
Legal
Duel
Legacy
Vintage
Commander
Premodern
Penny
Predh
Oathbreaker
Restricted
Paupercommander
Rulings
2004-10-04
The Ghoul still gets to claim counters even if it enters the battlefield after the creatures died.