Bulette Rampage (Combat)Source Armor Master's Handbook pg. 10
You are able to channel your enhanced momentum to deal incredible damage to multiple foes.
Prerequisites: Str 15, Bulette Charge Style, Bulette Leap, Improved Overrun, Power Attack, proficiency with heavy armor.
Benefit: While you’re using Bulette Charge Style, whenever you succeed at an overrun combat maneuver check against a foe, that foe takes an amount of damage equal to 1d8 (if you’re Medium) or 1d6 (if you’re Small) + 1/2 your armor bonus to AC + 1-1/2 times your Strength bonus.