Firefist (FOX)
Real name: Russell Collins
Alter egos: Firefist
Creator: Marvel Comics
First appearance: Deadpool 2
Race: Mutant
Height: -
Weight: -
Superpowers: Element Control, Fire Control
Stats: intelligence 90, strength 20, speed 30, durability 35, power 45, combat 50

History:
Russell grew up in the Essex House for Mutant Rehabilitation where he was tortured by the headmaster of the orphanage simply for being a mutant. This sparks the anger in him, causing him to want revenge. Eventually, Russell snaps and lets loose with his pyrokinetic powers. The X-Men – Colossus, Deadpool, and Negasonic Teenage Warhead – arrive to stop him. Deadpool managed to talk him down but realizes that the staff at the orphanage have been abusing him and kills a member of the staff. Both mutants are arrested, placed in power-dampening collars and taken to the Ice Box prison.Russell manages to sneak in a pen in his butt that he plans to turn into a shiv. His plan in prison is to find the largest guy in prison and start a fight to earn respect. Deadpool tries to get him to see the reality of prison, but Russell believes that he and Deadpool are a team that will protect each other. Unfortunately, Deadpool's collar stops his healing power, meaning his cancer returns. Deadpool is sure he is going to die in prison and not be useful in protecting Russell so he tries to make him see how his plan is not going to work. The Ice Box is attacked by Cable, a time-traveling mutant intent on killing Russell. In the future where Cable comes from, Russell is a serial killer, who, upon having his revenge on the headmaster, starts to enjoy killing people and commits mass murder throughout his life. In that particular timeline, he and Cable frequently clashed with one another, with the latter coming close to killing him a few times. Russell decided to hurt him by going after Cable's family. He broke into his home one night, and with Cable gone at that time, his wife and daughter were defenseless. Russell used his powers to set their home ablaze, killing Cable's family as a result. This, in turn, started Cable's mission in traveling to the past to kill Russell long before he killed his family.  During the attack on the prison, Deadpool's collar is knocked off and he manages to recover enough to fight Cable. Both Deadpool and Cable are thrown from the prison by a concussive blast. Left in the Ice Box, Russell ends up befriending the Juggernaut.After the attack on the prison, all the Ice Box prisoner are due to be transported to another facility. During the trip, the transport is attacked by Cable, although Deadpool and Domino try to stop him. Russell manages to let himself out of his cell with his pen, then frees the Juggernaut who crashes the transport. Russell and the Juggernaut escape. Intent on revenge, Russell, and Juggernaut head to the Essex House to kill the headmaster. Cable teams up with Deadpool and Domino to stop them, noting that this would be Russell's first kill which would set him on the path to the future that Cable is trying to avert. Deadpool tries to stop Russell by convincing him that people care for him by placing a power-dampening collar on himself and offering his life in place of the headmaster. He even takes a bullet to the heart from Cable, who was not convinced that Russell could be stopped. The sacrifice stops Russell and makes him lose his thirst for revenge upon seeing Wade die to protect him. Seeing this, Cable travels back in time to ensure that Deadpool did not die from his bullet by hiding a skee-ball token into Wilson's costume, which ends up blocking the bullet. Russell is still saved and the dark future is averted, with Cable's family alive.

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