"He who lost connection with the world, roams to find a missing friend. He who was exposed to the highest and the most strongest source, killsfor defense. He, Galio Grivon, was once a peaceful dragonkin living out his life until the devastating storm swept his firend into the abyss. Sworn to find him, he gave up his mind and soul."
-quoted from The Dawn of Nether

yep. he lost connection with the world. so in other words, he's insane. :P well, here is a dragonkin named Galio Grivon who was exposed to the max level of nether. so that means he stayed in the Maelstrom for about a year to transform into that thing.