Latest Appearance:
Strange Tales #163

Profile:
Lord of the Planet Perilous!   He who wields the Staff of Polar Power, which draws to itself the evil force of its victims.

Threatening to unleash the concentrated evil of the Staff of Polar Power, Nebulos was confronted by The Living Tribunal for daring to upset the cosmic balance of good and evil.  In the fierce confrontation that followed, The Living Tribunal destroyed the Planet Perilous, and Nebulos was buried in an avalanche.

Perhaps Nebulos is buried forever, or perhaps he escaped to appear in Godzilla movies or Power Ranger shows...