Guardian Beast

As long as Guardian Beast is untapped, noncreature artifacts you control can't be enchanted, they have indestructible, and other players can't gain control of them. This effect doesn't remove Auras already attached to those artifacts.

Masters Edition IV

As long as Guardian Beast is untapped, noncreature artifacts you control can't be enchanted, they're indestructible, and other players can't gain control of them. This effect doesn't remove Auras already attached to those artifacts.

Oversized League Prizes

Arabian Nights

As long as Guardian Beast is untapped, your non-creature artifacts cannot be further enchanted, destroyed, or taken under someone else's control. If something occurs that would destroy the Guardian Beast and artifacts simultaneously, the Guardian Beast is destroyed but your artifacts are not. If an artifact is enchanted or stolen while Guardian Beast is tapped, it remains so when Guardian Beast becomes untapped.