Whats Negaducks relationship to Nega-Gosalyn?
Almost non-existant, fortunately for her. The kid doesn’t seem too traumatized, so we might be able to assume that either he doesn’t pick on her much while he’s around, or he’s just really rarely around. But he obviously has noqualms whatsoever about having her killed along with Darkwing and “The Friendly Four” (the Negaverse versions of the Fearsome Five, minus one). Not like he cares- Negaduck doesn’t seem to have a whole lot of need for friends, anwyay.