Sierra, Nuka's Biggest Fan (Fallout)

Legendary Creature Ñ Human Citizen - The Nuka-Cola Challenge Ñ Whenever one or more creatures you control deal combat damage to a player, put a quest counter on Sierra and create a Food token.
Whenever you sacrifice a Food, target creature you control gets +X/+X until end of turn, where X is the number of quest counters on Sierra.