Armoring Spell (Feat)

Prerequisites: Caster Level 23

Benefit: In addition to the normal effects of the spell, targets of an armoring spell gain a +3 bonus to their AC. This bonus stacks with all other armor bonuses except itself. Multiple casters with this feat cannot stack this bonus on the same recipients. This bonus lasts for either the spell's duration or 1 round per caster level, whichever is higher.

An armoring spell uses up a spell slot two levels higher than the spell's actual level.