The original characters are all there such as Jago, who with his uppercut and fireball is a bit like Street Fighter's Ryu and Ken, Glacius with his icy attacks is
an effective ranged character, whilst Thunder is more at home in close combat, Sabrewulf might well appear to be weak, but his impressive speed makes up for this weakness, Orchid excels at aerial combinations and finally the only new character, Sadira has a double jump and can confound her opponents with web based attacks.
It may seem out of place in a superhero game, but could be an
effective style of gameplay for
ranged characters like Black Widow and Hawkeye who can't take hits as well as their fellow Avengers.