Type: General
Source: Fiendish Codex II
Your uncanny insight enables you to take advantage of the subtle opportunities created when an opponent uses super-natural abilities against you.
Prerequisite: Combat Reflexes
Benefit: When a creature you threaten uses a supernatural ability, it provokes an attack of opportunity from you. Unlike a spell or spell-like ability, though, a successful hit does not require the target to succeed on a Concentration check to continue to make use of the supernatural ability.
Normal: Supernatural abilities do not provoke attacks of opportunity.