You have studied the ways and weaknesses of spellcasters and can time your attacks and defenses against them expertly.

Prerequisites: BAB 1+, Base Knowledge(Arcane/Psionic/Religion) score 4 or Base Survival Score 6

Benefit: All mage slayers receive a +4 bonus on skill checks to identify spells.

Mage Slayer Strike: As a standard action you may perform a special mage slayer attack which is a melee attack while in mage slayer style which ignores magical bonuses to armor class. After using Mage Slayer Strike you watch your target for one turn, during this time period any spells and spell-like abilities from that target provoke an attack of opportunity from you.

Special: You cannot activate styles out of combat. Activating a style is a swift action and you can have solely one active style at a time.