Questing Cosplayer is a rare Creature — Human Bard card from Unknown Event (UNK), collector number RG02d. Current market price: $20.00, TCGplayer market prices via Scryfall.
When Questing Cosplayer enters the battlefield, create a Questing Role token and attach it to target creature. (If you control another Role on it, put that one into the graveyard. Enchanted creature has all the abilities of Questing Beast.)