What are you talking about? This isn't some random berserk thing, this is from back when he "fought himself" during the Wiefe/Arcnemy arc. He created a strong image of himself, and that version, another part of him, challenged how serious he was about protecting her. It's not a "power up" per se, but a more ruthless way of using the power he's got. And there's nothing berserk or new about it either, it's established.@Aangmj12
Well, i have seen worse power up, lets go for the berserk one
No.unknown