Change a letter, ruin a champ

TyEdge

Human Porch

Hulkbaster

Thong

Comments

Masterpuff

Robin

Yodabolt21

I got a few more....

Bentinel
Whino
Fredpool... kind of a stretch
Faredevil..... a toll roads worst nightmare
Buggernaut
Toe Fixit
Cant-Man

Crcrcrc

Iran man

Meebleton

Caredevil
Tentinel (That's a real Marvel Character, it's exactly what it sounds like, Ten Sentinels rolled into one)
Doctor Zoom

Meebleton

Aunt Man
Drag the destroyer
Cold Man Logan

Meebleton

Longshow
Howard the cuck
Art Man

JragonMaster170

Thanos - Thanks
Drax - Drat
Hulk - Bulk
Daredevil - Caredevil
Red Hulk - Ded Hulk
Human Torch - Human Porch
Iceman - Ickman
Ebony Maw - Ebony Naw
Corvus Glaive - Corvus Slaive
Kang - Kong

Meebleton

Thanos - Thanks
Drax - Drat
Hulk - Bulk
Daredevil - Caredevil
Red Hulk - Ded Hulk
Human Torch - Human Porch
Iceman - Ickman
Ebony Maw - Ebony Naw
Corvus Glaive - Corvus Slaive
Kang - Kong