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 - £1.20
Near Mint Non English - £1.20
Lightly Played - £1.10
Lightly Played Non English - £1.10
Moderately Played - £0.90
Moderately Played Non English - £0.90
Heavily Played - £0.60
Heavily Played Non English - £0.60
Damaged - £0.40
Damaged Non English - £0.40