Valorous Vanguards
This character originally appeared as a villain in a story where he was defeated by super-termites.
She defeated Dormammu with an army of ghost squirrels
Squirrel Girl
She has a cat named Liho which is Russian for "misfortune"
Black Widow
This character is shorter than I am at 5'3.
Wolverine
This character got their powers via synthetic heroin
Cloak and Dagger
This character possesses allspeak, anything he hears is automatically translated for him and anything he says is understood by the rest of the group.
Thor
He was beaten using a wooden gun in the 1978 Fantastic Four cartoon.
Magento
This dualist is the Sorceress Supreme of her Limbo Dimension where she canonically beat Strange in a 1v1
Magik
This character bonds with Doctor Strange over their amazing facial hair.
Iron Man
This character was created for the game "Marvel Future Fight" before she made her official comic debut.
Luna Snow
A X-men that can adapt to any strength was so overwhelmed by this Vanguard's power that his solution was to teleport away and never fight him again.
The Hulk
His exoskeleton helped him absorb the blast from Ultron-Warlock.
Rocket Raccoon
This character's fighting style is so unorthodox that the Taskmaster is unwilling to imitate him out of fear of self-injury.
Moon Knight
This character had a canonical race change, and the fans enjoyed it so much that it was kept
Psylocke
This character appears in a non-designated crossover with DC because her creator loved her so much
Mantis
He played baseball against a group of human souls being possessed by demons in order to free them from their possession (HE WINS).
Doctor Strange
Her main turning point in her backstory was watching both her rival and her aunt get eaten alive.
Peni Parker
This Duelist was able to change his fighting style instantly, mid-fight, to beat Mr. X (a mind reader) in an unarmed duel.
Iron Fist
This Duelist gets corrected by Doctor Doom when it comes to Star Trek Trivia
Spider Man
This character is responsible for showing Deadpool that he was in a comic book.
Loki
In 1996's DC vs. Marvel, Batman noted he "could beat him, but it would take a long time."
Captain America
This duelist went toe-to-toe with Ghost Rider and WON, with some help in his arsenal as well as COMPLETELY resisting Ghost Rider's penance stare.
The Punisher
He killed all 350,000 inhabitants of the moon in order to stop the Fallen One.
Star-Lord
In order to win a fight against Wolverine, this Duelist kicks him in the nuts.
Black Panther
This character was Thanos's only friend and once gave the infinity stones sentience
Adam Warlock