Arcane Mastery
From Compendium of Worldly Lore
Needs review
Source: Complete Arcane
Description: You are quick and certain in your efforts to defeat the arcane defenses and spells of others.
Prerequisites: Ability to cast spells or use spell like abilities
You can take 10 on caster level checks (as if the caster level check was a skill check). You can use this feat even while under stress.