Augmented Critical (Ex): The claws of the Kabutops threaten on a 17-20 and deal x3 damage. Blood Drain (Ex): With every bite, enough blood is drunk to deal 1 points of Con damage per 2 HD. This restores 5 HP to the Kabutops for every point of Con damage dealt. Harden (Ex): If Kabutops makes a full defence, its natural armour bonus improves by 4 points for three rounds. Multiple full defences do not stack.