Fan Favorite is a common Creature — Human Rogue card from Battlebond (BBD), collector number 46. Current market price: $0.19 (foil $0.25), TCGplayer market prices via Scryfall.
Assist (Another player can pay up to {3} of this spell's cost.) {2}: This creature gets +1/+1 until end of turn. Any player may activate this ability.