The extra defense you draw from your abjuration spells improves.

Prerequisite: Abjuration Adept, caster level 11th

Benefit: Whenever you cast a spell of the abjuration school, you become resistant to potentially harmful energies. You ignore the first 2 points of acid, cold, electricity, or fire damage that would be dealt to you. This protection does not stack with other forms of energy resistance, and lasts for a number of rounds equal to the spell's level. Multiple instances of this ability do not stack.