Needs review
Source: Epic Level Handbook

Description: One of your personal emanation spells becomes permanent.

Prerequisites: Epic Level, Spellcraft (25 ranks), Ability to cast the spell to be made permanent

Designate any one of your spells whose area is an emanation from you, such as detect magic. This spell effect is permanent (though you can dismiss or restart it as a free action). Effects that would normally dispel you spell instead suppress it for 2d4 rounds.

Special

This feat may be taken multiple times. Each time, you select a different spell to become permanent