Looking back at these old chapters, they really balanced his ability well. He couldnt make a nuke for example, because the detonation range makes it impossible for him to use with his ability limit. The only thing I can think he can abuse is some nuclear bullet that he could safely shoot, and that would only lightly improve his offence. His massive weakness is the ability can only create things within physical touch (stungun shoes, otherwise hands only). Theoretically the objects begin with matching velocity to nearest body part, so he can increase close combat with osmium armor to block or instantly quintuple physical force attacks, but since his ability isnt instant the weight could backfire during the after attack where he needs to dispel the object. he probably could try abusing physics and start yeeting osmium knives too.