Glint Hawk Idol is a common Artifact card from Modern Masters 2015 (MM2), collector number 216. Current market price: $0.10 (foil $0.24), TCGplayer market prices via Scryfall.
Whenever another artifact you control enters, you may have this artifact become a 2/2 Bird artifact creature with flying until end of turn. {W}: This artifact becomes a 2/2 Bird artifact creature with flying until end of turn.