DweomercrÃ¦ft (3.5e Feat)
From D&D Wiki
Dweomercræft [Epic Metamagic]
Some mages have come to a unique understanding of metamagical processes, rendering them capable of effortlessly altering their spells.
Benefit: The spell slot modifier of all the character’s metamagic feats is reduced by one level, to a minimum of +0. This feat can never reduce a spell below its actual level (for example, an extended Tongues still requires a third-level spell slot to cast).
Normal: Spells modified by metamagic usually have their spell-slot requirement increased. This increase cannot normally be avoided, even with Improved Metamagic.
Special: Variables dependent upon spell level other than the spell slot used to cast the spell are not effected by this feat. For example, a Hold Person spell heightened to fourth level still affects its target as if it were fourth level, but requires only a second-level spell slot. Additionally, a character who takes this feat can no longer take Improved Metamagic.