Cloudsteel Kirin is a rare Artifact Creature — Equipment Kirin card from Kamigawa: Neon Dynasty Promos (PNEO), collector number 8s. Current market price: — (foil $1.32), TCGplayer market prices via Scryfall.
Flying Equipped creature has flying and "You can't lose the game and your opponents can't win the game." Reconfigure {5} ({5}: Attach to target creature you control; or unattach from a creature. Reconfigure only as a sorcery. While attached, this isn't a creature.)