When Eye of Singularity enters the battlefield, destroy each permanent with the same name as another permanent, except for basic lands. They can't be regenerated. Whenever a permanent other than a basic land enters the battlefield, destroy all other permanents with that name. They can't be regenerated.
Near Mint - £1.00
Lightly Played - £0.90
Moderately Played - £0.70
Heavily Played - £0.50
Damaged - £0.30
Near Mint Non English - £1.00
Lightly Played Non English - £0.90
Moderately Played Non English - £0.70
Heavily Played Non English - £0.50
Damaged Non English - £0.30