All the dragon flights headed for the city of Zin-Azshari, where the night elves and the Burning Legion's demons were fighting it out. As promised, wow account channeled his power through the Dragon Soul to kill most of the wow account. However, it also killed most of the night elves. Then Neltharion turned to the other dragons and essentially said, "By the way, I was the only one who didn't put any of my power in here, so I'm now stronger than you. And you know what would be awesome? Me ruling the world." The other dragons attacked him, but he used the Dragon Soul to kill most of the Blue Dragon flight and paralyze everyone else, except wow account who Neltharion kind of had a thing for. Neltharion's appearance changed from a normal dragon into a big fiery demon dragon, and he was reborn as Death wing the Destroyer.

 

Neltharion has control over the land, and its fathoms, including lava.  His main attack is a spit of Core lava fire.  He can live within volcanoes and high temperature areas.  It is rumored that he was able to find the prison of the Old gods.  The inner-voices of the three Old gods convinced him that he could have power beyond his imagination if he served them.  The voices made him paranoid of even his wow account.  Neltharion wanted a world where only he and his dragon flight and some servants that yield to wow account could exist.  A world where all the other dragon flights no longer existed, and where wow account would be his petty slaves for mating.