|Malevolent Psionic Entity|
|Nation or Planet of Origin|
|Base of Operations|
|10' - Varies|
|900 lbs. - Varies|
Psionic entity of incalculable physical and mental strength, speed, intelligence and durability.
Onslaught: Marvel Universe Vol. 1
Onslaught: X-Men Vol. 1
Uncanny X-Men Vol. 1
X-Men Vol. 2
X-Man #15 (May, 1996)
X-Men Vol. 2 #53 (July, 1996)
|Mark Waid & Andy Kubert|
Distraught with grief over the endless persecution against mutants and the death of Illyana Rasputin (Magik I) from the Legacy Virus, Magneto intended on using an electromagnetic weapon to destroy humanity from his space station, Avalon.
The X-Men lead by Professor X traveled to Avalon to stop Magneto's plan. Using his telepathic powers, Professor X had to resort to shutting down Magneto's mind rendering him comatose. While in contact with his adversary's mind Xavier was infected with Magneto's anger, grief and lust for vengeance. These negative feelings with his own long-suppressed emotions combined and festered.
In time the combined emotions of these two mutant leaders would take form as a global menace that required the combined might of Earth's heroes to stop the Onslaught.
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