Critical Casting (Critical)

When you score a critical hit with a spell, you retain the spell energy used.

Prerequisite: Magical Aptitude, Spell Focus, CL 9.

Benefit: When you score a critical hit with an attack roll for a spell of a school with which you have taken Spell Focus, you do not expend the prepared spell or spell slot used.

Special: You can apply the effects of only one critical feat to a given critical hit unless you possess Critical Mastery.