Improved Combat Casting

(Complete Arcane, page 192, DnD 3.5)

[Epic]

You heighten your ability to cast spells while threatened without fear of being attacked.

Prerequisite

Combat Casting, Concentration 25 ranks

Benefit

You get a bonus equal to 1/2 your caster level on Concentration checks made to cast a spell or use a spell-like ability while on the defensive or while you are grappling or pinned.