Could Darth Bane replicate Exar's Nadd/Sith Wyrm/Massassi feats?

Same circumstances as Exar Kun faced

*Bane as of DoE

Can Bane destroy Nadd's spirit, disintegrate A Sith Wyrm/Massassi warriors/and cause gaping holes in the Temple walls? Could Bane replicate Exar's Massassi drain feat?

Probably, I don't see why not.

No, I highly doubt that, he was incapable of having any effect on Zannah's dark side energy, manipulating it to a far greater magnitude would be way beyond that.

Bane could do everything doesn't require sorcery, sure.