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.
NM-Mint - $2.60
Lightly Played - $2.40
Moderately Played - $2.10
Heavily Played - $1.90
Damaged - $1.30
NM-Mint Non English - $2.60
Lightly Played Non English - $2.40
Moderately Played Non English - $2.10
Heavily Played Non English - $1.90
Damaged Non English - $1.30