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.
Near Mint - $487.600
Lightly Played - $390.100
Moderately Played - $341.300
Heavily Played - $292.600
Damaged - $243.800
Near Mint Spanish - $487.600
Lightly Played Spanish - $390.100
Moderately Played Spanish - $341.300
Heavily Played Spanish - $292.600
Damaged Spanish - $243.800