Cheapest priced copy (Fallout): $0.49 at Card Kingdom, near mint, their price list as of .
Sierra, Nuka's Biggest Fan 
Legendary Creature — Human Citizen · 3/4 · Rare · Fallout · #25
The Nuka-Cola Challenge — 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.
Legal inCommanderLegacyVintage
Not legal inBrawlStandardPioneerModernPauper
4 printings · $0.49 to $4.99 at Card Kingdom
5 rulings from Wizards of the Coast
- 8 March 2024If an effect refers to a Food, it means any Food artifact, not just a Food artifact token. For example, if you sacrifice a nontoken Food artifact, such as Candy Trail from the Wilds of Eldraine set, Sierra's last ability will trigger.
- 8 March 2024Sierra's last ability triggers whenever you sacrifice a Food for any reason, not just to activate a Food's activated ability.
- 8 November 2024Food is an artifact type. Even though it appears on some creatures, it's never a creature type.
- 8 November 2024You can't sacrifice a Food to pay multiple costs. For example, you can't sacrifice a Food token to activate its own ability and also to activate Maraleaf Rider's ability.
- 8 November 2024Whatever you do, don't eat the delicious cards.