Magic:Bigbys Interposing Hand

Evocation
Level: Sor/Wiz 5
Innate Level: 5
Component(s): V, S
Casting Time: 1 action
Range: Long
Target: Single
Duration: 6 Seconds/Level
Counter(s): --
Saving Throw: None
Spell Resistance: Yes
Metamagic: Extend, Quicken, Silent, Still
Energy Substitution:

A giant hand appears over the target, making it difficult for it to attack. The target receives a -10 penalty to all attack rolls for the duration of the spell.