SunRazer
Back From The Dead
1. It's not the wording I'm concerned about, it's the fact that the building can house Star Destroyers, which gives you an estimation of its size. Destroying it with a thought is unquestionably impressive. As for Lightning, I thought it was a few ships - that's not a "small fleet". I'd say casually ashifying a Sith wyrm decades before RotJ constitutes a rivalling feat.
Fair enough on the Imperial Guards. Regarding the Dread Masters, I'd say dominating the population of Byss in what appeared to be an easy feat puts him well above them in telepathy, and in other areas, he's vastly superior. So yeah, they are insignificant to him.
2. Well, as a weakened spirit who was dividing his power between Ommin and Amanoa, Nadd managed to collapse a tomb and restore everything in Kun's body, so I expect him to be highly proficient in both telekinesis and healing. He should be able to do pretty much everything that Ommin/Amanoa could do but on a vastly greater scale.
As far as how he'd win, I think being more powerful than Zannah and having things like Drain at his disposal count? And then there's always Wormhole 🙂
3. I know. I don't know why I mentioned Sadow channeling stuff, to be honest. That said, perhaps Nadd could fight Nox and Sadow Zannah?