User blog comment:Kogath/Monster Hunter Generations Discussion/@comment-6050823-20161003221508/@comment-26034899-20161005221527

@ Drake512: Yes, Astalos doesn't have a lot of durability as far as 5-star monsters go, especially when he charges up his body parts. The main things he has going for him are that he's highly aggressive and has fast and powerful attacks. Granted, he does have more health than Rathalos (4500 base HP compared to Rathlos' 4200, if Kiranico is to be believed), but the charging mechanic gives him more weakpoints to exploit.

Also, having superior power isn't something to boast about if your main tactic is charging forward and you happen to be going up against an opponent who can outsmart and outflank you. Sure, having a ruthless fighting style isn't entirely useless (in fact, many wars have been won through brutal, underhanded tactics), but unless you use it properly (like, say, making sure your opponent doesn't have the chance to adapt or counterattack), you're going to be sloppy and predictable in battle.