Improved Metamagic
( Epic Level Handbook, p. 59)[Epic]
You can cast spells using metamagic feats more easily than normal.
Prerequisite
Four metamagic feats, Spellcraft 30 tanks,
Benefit
The spell slot modifier of all your metamagic feats is reduced by one level, to a minimum of +1. For instance, you could cast a quickened spell as a spell of three levels higher rather than four levels higher. This feat has no effect on metamagic feats whose spell slot modifier is +1 or less.
Special
You can gain this feat multiple times. The effects stack, though you can't reduce any metamagic feat's spell slot modifier to less than +1.