Magic:Minor Globe of Invulnerability

Abjuration
Level: Sor/Wiz 4
Innate Level: 4
Component(s): V, S
Casting Time: 1 action
Range: Personal
Target: Caster
Duration: 1 round/level
Counter(s): --
Saving Throw: None
Spell Resistance: No
Metamagic: Extend, Quicken, Silent, Still
Energy Substitution: No

A shimmering field of energy prevents all spells of level 3 or lower from affecting the caster.