Thread:The Everlasting/@comment-24503208-20180329200243

https://comicvine.gamespot.com/profile/darthant66/blog/darth-nihilus-respect-thread-2017/97172/

I managed to look into Darth Nihilus and it look like it was confirmed he is a destroyer of planets apparently.

"Then her lies will mean the planet's destruction, he will destroy all of Telos. He will turn it to fire again and crush the planet beneath him. He will devour them all, murder them all."

"If there are no Jedi here, then my Lord cannot feed his hunger. He will destroy the planet, the station, he will cleanse it of life. Even if the people below are not Force Sensitive, the small amount he can feed on from the mass destruction of the station, and the life of the planet, will sustain him a while longer."

―Visas Marr and Tobin (Star Wars: Knights of the Old Republic: The Sith Lords)

Darth Nihilus was a destroyer of worlds, consuming worlds with dark side energies with a thought.

"As Nihilus greedy consumes entire planets life energies, the dark side macerates him even faster."

―Star Wars: Knights of the Old Republic Campaign Guide

"[Darth Nihilus can] devastate and consume entire worlds with a thought."

―Power Beyond Belief: Using Ultra-Powerful Sith Lords in Saga Edition

"Darth Nihilus is literally a destroyer of worlds, powered by an insatiable hunger that drives him to consume greater and greater populations. While one may reasonably expect someone fallen to the dark side to employ Force lightning against a foe, no one expects a fleet of starships commanded by Sith Lords consuming entire planets. Nor would Nihilus tolerate such a rival and competitor for his sustenance. Given the Sith Lord's unique background, it is not the type of ability that would be taught to an apprentice."

―Power Beyond Belief: Using Ultra-Powerful Sith Lords in Saga Edition

"Darth Nihilus was known as the Lord of Hunger and was noted for his ability to literally consume the Force energy of his victims, which was used to sustain his own life energies. It was rumored that he could consume the Force energy of an entire planet.

―The Complete Star Wars Encyclopedia

Darth Nihilus drained the energy of Darth Traya, severing her connection to the Force.

Not sure on this, but I suppose this means he will be High 6A, likely higher at the very least. 