User blog comment:Saren the Dark Lynx/SFW Summer 2015 Awards Entries/@comment-7637833-20150730152559/@comment-7637833-20150730201454

Alright, in short, he was a normal Nightmare-type Dark Creature who witnessed Sigma proceeding to establish his authority in the Dark Dimension. Wanting to prove himself to the new Dark King, Dusk decides to gather as many Void Crystals as possible, either stealing them from others, finding them in various places, and sometimes even killing a fellow Dark Creature (if that's an option that is).

Once he gets enough, Dusk decides to devour them all, and the power of the Void Crystals starts to flood his body, changing and empowering him greatly. However, such massive amounts of energy in a single go proves too much for his mental state, greatly deteriorating it and producing the sadomasochist we know today.

Does that make sense? .o.