Brotherhood

After a tenure with the subversive organization Factor Three (intended to become a third major world power), Blob, Mastermind, and Unus banded together as a new Brotherhood. Following a failed attempt to settle the score with the X-Men, the trio was able to make the Beast believe he had killed the Avenger Iron Man and manipulated him into joining until he realized the truth and single-handedly defeated them.

Eventually returning to Earth, Magneto re-formed the Brotherhood with Blob, Mastermind, Unus, and the Savage Land Mutate Lorelei to assist him in the creation of a being with unlimited power that he dubbed Alpha, the Ultimate Mutant. In an encounter with the Defenders, the rapidly evolving Alpha unleashed his powers, reducing the Brotherhood to a state of infancy.

Mastermind, Unus, Blob, and Lorelei were later restored to their proper ages and were recruited by the Vanisher to seek revenge on the X-Men, but were defeated by the Champions.