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.
NM-Mint - $92.50
Lightly Played - $83.20
Moderately Played - $74.00
Heavily Played - $64.80
Damaged - $46.30
NM-Mint Non English - $92.50
Lightly Played Non English - $83.20
Moderately Played Non English - $74.00
Heavily Played Non English - $64.80
Damaged Non English - $46.30
Foil Prices
NM-Mint Foil - $0.00
Lightly Played Foil - $0.00
Moderately Played Foil - $0.00
Heavily Played Foil - $0.00
Damaged Foil - $0.00
NM-Mint Foil Non English - $0.00
Lightly Played Foil Non English - $0.00
Moderately Played Foil Non English - $0.00
Heavily Played Foil Non English - $0.00
Damaged Foil Non English - $0.00