Prerequisite(s): Magus 3

Benefit(s): When a conjuration (summoning) spell is cast by an opponent and the magus successfully identifies the spell with a Spellcraft check, he can spend 1 point form his arcane pool as an immediate action to cast protection from chaos/evil/good/law (chosen when using this ability) on himself; this lasts a number of rounds equal to his magus level.

At 7th level, he can instead cast magic circle against chaos/evil/good/law when using this ability.