Proof of Existence: Prince of Darkness
Weapon: Summoning Charm
World: Traverse Town
How He Died: Ioni (somebody) was investigating the source of the heartless attacking his world. Upon finding it he fell into a great pit of Heartless. These Heartless sensed potential in his heart. They plunged themselves into Ioni's heart overwhelming it, all the while ripping off his outer shell. The outer shell came to life becoming a Nobody. His overwhelmed heart became a powerful Guardian Heartless.
Weapon Details: Using the summoning charm, he captured and can now willfully summon and control his Heartless. Note; he can only control his own Heartless. Nioxi cannot control, manipulate, or influence any other Heartless in any way, shape or form.
Physical Attributes: Moderate build, black eyes (golden-yellow when enraged), black, evenly cropped hair, an 'X' shaped birthmark on the back of his neck, and 'XC', the roman numeral for ninety, tattooed on his left arm.
Clothing: Standard Organization cloak, pants, gloves, and boots, along with a black long sleeved shirt. He keeps his cloak zipped down only to just below his chest, and often keeps his hood up when around people (including other members.) He does not behave any differently when around his superiors, and will show respect only to a select few whom he deems worthy.