Spotlight On...MENTALLO

[Monolith]

Not all mutants come with earth-shattering power -- Marvin Flumm is a very minor psi-talent which just happens to be from an X-Gene. As Mentallo, he has forged a criminal career using technology or just simple guile to stretch his limited abilities to be as profitable as possible. Thief, mercenary, terrorist-for-hire, Mentallo has fought Avengers and X-Men alike while serving A.I.M., Hydra or his own selfish ends with his partner, the Fixer. Currently on Krakoa, Mentallo is one mutant to watch out for, as the ones with the most to prove can be the most dangerous.

https://uncannyxmen.net/characters/mentallo

[WorldWideWade]

An interesting read. He's a character that I never really saw as more than a filler character in a team of baddies. I do recall him from that Astonishing X-men arc and thought it was a random choice for a main bad.

[Gremlin]

Always got confused with him and Mesmero because of the names. Great read.