Magic:Mind Fog

Enchantment (Compulsion) [ Mind-affecting ]
Level: Brd 5, Sor/Wiz 5
Innate Level: 5
Component(s): V, S
Casting Time: 1 action
Range: Long
Target: Colossal
Duration: 2 Rounds + 1 Round/2 Levels
Counter(s): --
Saving Throw: Will negates
Spell Resistance: Yes
Metamagic: Extend, Quicken, Silent, Still
Energy Substitution: No

This spell creates a bank of blue fog that saps the will of all those who enter it. Victims take a -10 penalty on Will saving throws against mind-affecting spells and effects. This penalty persists for as long as the creature remains within the fog and for an additional 2d6 rounds upon leaving.