When Detention Sphere enters the battlefield, you may exile target nonland permanent not named Detention Sphere and all other permanents with the same name as that permanent. When Detention Sphere leaves the battlefield, return the exiled cards to the battlefield under their owner's control.
Near Mint - £0.20
Lightly Played - £0.20
Moderately Played - £0.20
Heavily Played - £0.10
Damaged - £0.10
Near Mint Non English - £0.20
Lightly Played Non English - £0.20
Moderately Played Non English - £0.20
Heavily Played Non English - £0.10
Damaged Non English - £0.10
Foil Prices
Near Mint Foil - £0.30
Lightly Played Foil - £0.30
Moderately Played Foil - £0.20
Heavily Played Foil - £0.20
Damaged Foil - £0.10
Near Mint Foil Non English - £0.30
Lightly Played Foil Non English - £0.30
Moderately Played Foil Non English - £0.20
Heavily Played Foil Non English - £0.20
Damaged Foil Non English - £0.10