Sudden Empower

(Miniatures Handbook, page 28, DnD 3.5)

[Metamagic]

You can cast one spell per day to greater effect without special preparation.

Prerequisite

Any metamagic feat

Benefit

Once per day, you may apply the Empower Spell feat to any spell you cast, without increasing the level of the spell or specially preparing it ahead of time. You may still use the Empower Spell feat normally, if you have it.