What is the breakdown on horntail's attacks?

Monster buffs are actually specific to the skill and add a certain value to attack/defense (which is then quadratic-ized if it's attack) and not just a percentage of damage. Defense up seems like it works this way where it actually matters because most of the time the defense values get so high that they reach the 2000 limit. Wings add 130 magic and 130 attack, legs stomp for 950 PA, and tail slams for 850 PA. Max damage ignoring defense is estimated by 0.0085*PA^2, but most people with zakum hats and kind of regular equipment usually tack off like 400 damage or so.