Dragon Ferocity

You attack with the strength of a dragon, your telling blows striking fear into your enemies. While using Dragon Style, increase your Strength bonus on unarmed strike damage rolls by an additional one-half your Strength bonus, to a total of double your Strength bonus on the first attack and 1.5 times your Strength bonus on the other attacks. When you score a critical hit or a successful Stunning Fist attempt against an opponent while using this style, that opponent is also shaken for a number of rounds equal to 1d4 + your Strength bonus.