Bilbo, Thief in the Night is a mythic Legendary Creature — Halfling Rogue card from The Hobbit (HOB), collector number 255. Current market price: — (foil $58.09), TCGplayer market prices via Scryfall.
Spells you cast from anywhere other than your hand cost {1} less to cast. Whenever Bilbo attacks, you may cast an artifact, instant, or sorcery spell from your graveyard. If an instant or sorcery spell cast this way would be put into your graveyard, exile it instead.