You have been trained to fight dragons.

Prerequisite(s): Knowledge (arcana) 4 ranks, base attack bonus +4.

Benefit: Whenever you confirm a critical hit against an opponent that has a breath weapon, you can forgo the extra critical damage to instead prevent your foe from using its breath weapon for a number of rounds equal to twice the critical multiplier of your attack, in addition to any normal delay mentioned in the breath weapon effect's description.