Ah...in that case, I don't think it's needed. He's already very scary indeed and Odr has a high chance of killing him, plus the risk of it counting as disclosure right as a battle starts. He may not be a nuke, but if he's together mentally, he's more than good enough as a warrior to make a good showing and die in battle if that's his goal.
It's not worth the gamble to power him up by the degree he'd be powered up (which, to be clear, would be meaningful but not a huge percentage increase of his current power comparatively).
Like, realistically, we're talking...maybe 2 Shapeshifting slots? And +3 or +4 Endurance? It'd matter but not enough to be worth the risks. Unless you're advocating for Hugr Infusion in which case, uh, him going berserk and likely murdering people on our side is not an improvement to the situation.