Inferno
Created by the Goblin Queen, the demon lord S'ym, and N'astirh, Inferno was intended to burn the world in an arcane fire corruption and death, with Cyclops's son Nathan as the fuel! Transforming Manhattan into their proving grounds, the trio opened a mystic gateway to limbo, summoning a demon invasion. Though the dark magic around them corrupted the X-Men's souls as well, they joined with X-Factor and the New Mutants in combating this infernal menace! But only with the sacrifice of Magik's sorcerers abilities were the flames of this dark bonfire extinguished!

Inferno Appearances:
Uncanny X-Men #240-242,
New Mutants #71-73,
X-Factor #36-39.
January April 1989