Cloudsteel Kirin 
Artifact Creature — Equipment Kirin
Flying
Equipped creature has flying and "You can't lose the game and your opponents can't win the game."
Reconfigure 
(: Attach to target creature you control; or unattach from a creature. Reconfigure only as a sorcery. While attached, this isn't a creature.)
Legality
standardNOT LEGALpioneerLEGALmodernLEGALlegacyLEGALvintageLEGALcommanderLEGAL