Indomitable Archangel is a rare Creature — Angel card from Modern Masters 2015 (MM2), collector number 19. Current market price: $0.37 (foil $3.14), TCGplayer market prices via Scryfall.
Flying Metalcraft — Artifacts you control have shroud as long as you control three or more artifacts. (An artifact with shroud can't be the target of spells or abilities.)