Belladonna Took is a rare Legendary Creature — Halfling Citizen card from The Hobbit (HOB), collector number 4. Current market price: $1.86 (foil $2.75), TCGplayer market prices via Scryfall.
Whenever a token you control enters, you gain 1 life if this is the first time this ability has resolved this turn. If it's the second time, draw a card. If it's the third time, put a +1/+1 counter on each creature you control.