Against a decent chunk of weapons, and at the tier of play you first meet him at, he's very hard. Especially since the first few times you meet him, is while you're hunting other things. So it's not that he's hard so much, but that trying to deal with him, at the same time as other monsters, while he's not your focus, is. It's also partially a physiological view of him as being hard, that makes him hard. As, again, the first few times you meet him as while on hunts for other monster, and no matter what it is you're up against- he'll grab it and rip it apart like it's several tiers below him. You're in there fighting stuff that requires a decent amount of thought to not die against, and he bursts in there and smashes them like they're cannon fodder. He will, literally, pick up the monster it is that you're fighting, and throw it at you out of spite. Unlike other monsters, he does not back down very easily. His stamina feels way higher then that of any other creature, and his rage sessions seem limitless sometimes. He could be on deaths door step, but you'd be under the impression that you haven't even made a dent in his health. There are other monsters after him that'll do that too, but he's the first and most uncaring of them. In conclusion- He is a, very, angry pickle.