Vitiate ends this swiftly.
---
About Nihilus:
Dark times had come to the Republic. Reconstruction from the Jedi Civil War was still ongoing, and the Jedi Order’s numbers were dwindling. Worse, many Jedi sensed a new Sith threat emerging but could not pinpoint the source. Finally, the Jedi Council called a conclave on the Miraluka colony of Katarr. The order’s Masters, including the legendary Vandar Tokare, gathered to discuss the possibility that the Sith had returned. They did not know that Darth Nihilus, a being of pure hunger and dark side power, was approaching the colony. Drawn to the assembled Masters, Nihilus devoured the life energy of everything on Katarr. Millions of Miraluka died, along with most of the Jedi Order’s senior members. Walking Katarr’s lifeless surface later, Darth Nihilus came across the only survivor: the traumatized Miraluka Visas Marr, whom Nihilus took as his apprentice.*
About Vitiate:
The Sith Emperor has mastered the dark side’s power to become the most dominating Force-user the galaxy has ever seen.*
*SWTOR
In Unseen, Unheard a rough estimate is that Nihilus' attack took about an hour. Since Visas' narration right before the attack said that everyone would be dead in under an hour.
I would argue that Vitiate likely is a wound, given his almost identical nature to Nihilus.
Originally posted by Stealth Moose
That simply proves he's sentient. He is literally an essence bound to his mask and robes, so it may be that he lacks a conventional physical mind. If Vitiate can mentally dominate spirits then this isn't a concern.
He almost certainly can, given that he suppressed the spirits in the Dark Temple as well as drained them of their force knowledge.
I would think Vitiate has knowledge of a defensive attack to stop Nihilus's drain should he attempt to drain him instantly. 'Tis something I cannot prove, tho. But Vitiate's power and knowledge are both immense; I just don't buy that Nihilus would simply come and drain the shit out of him like he was fodder.