Nemesis vs Batman One Million

Batman cannot steal souls. The fight takes place in a Gotham Museum. No prep. In character morals. Standard weaponry. Who wins?

Batman

Nemesis. Better feats.

Combat precognition and a blade that would slice through anything Batman tried to block with. Without prep Batman has no reason to attempt to not parry it and then fwoosh, dead as hell.

Nemesis should win.