The only ones I can see being a hero is Lamp Man, Toxic Girl and Shrimp. Lamp Man can take away lights of the battle field away. Creating an advantage for him or someone else tk sneak up on him. And can also use his head as a guide at dark places. Toxic Girl, although vomitting acid is a bit gross. It can be efficiently used. As she can destroy hogh protection metals just by vommiting. Could use the acid as a lethal weapon and a handy tool to breach in. And Shrimp is Shrimp.