Name: Martin "Marty" Finch
Powers/abilities: Oxygen production/manipulation: O2 is capable of producing oxygen from his body and controlling it's direction and pressure (mentally albeit only in minute quantities). Typically, O2 used this power to dizzy his opponents by flooding the air in their vicinity with oxygen and taking them out with a well placed sucker punch, he has also increased the air pressure to "walk" on air as well as creating small barriers to block projectiles and soften power blows. Finally as a last resort he can create bubbles of oxygen to enter an opponent's veins via any external wounds, however due to O2's moral oppositions against killing he has sworn never to use his powers in way ever again since the accident (see bio for more). Outside of combat O2 serves as a seemingly limitless air supply for his allies, he can also use his powers to reseal pressurised areas i.e. Submarines, Airplane cabins, Spaceships etc. However, he is not without weakness, firstly O2 is not immune to the effects of his powers and could risk dizzying himself or his allies (leaving them open to attacks), secondly he can only manipulate small quantities of oxygen at a time (he cannot create multiple barriers or long staircases of air). Additionally, outside of his superpowers O2 is proficient in hand to hand combat as well as wielding his former partner's knife (which is able to vibrate at high speeds, enabling it to slice through most conventional forms of body armor).
Since the events of the superhero revolution O2 has honed his skills and been able to develop his powers further. Now instead of creating just Oxygen he is able to create air (the air which currently makes up earth's atmosphere).
Additionally, O2's suit has been modified as well a series of malleable rubber tubes, that run across the now pressurised suit (which is now able to traverse underwater for an indefinite period of time, barring changes in pressure). The suit also has two small outlets located on O2's wrists where he can fire pressurised air, capable of cutting through metal in a matter of seconds, which varies depending on thickness and density.
Personality/Bio: Prior to The Accident O2's attitude was generally cavalier and outgoing, his fame and popularity enable him to live an affluent and successful life. However, he has since become more melancholy of late, owing to The Accident
which caused the loss of his partner Tachyon as well as his fall from grace (subsequently incurring the loss of his high profile corporate sponsors) and the guilt he harbours regarding it, though he is still upbeat and tries to see the best in a bad situation. However, due to the recent conflicts arising and influx of new Heroes and Villains (and resurgence of the old) O2 vows to restore his honour and bring peace to New Evo City (and possibly secure a new brand deal).
After his return to the fold O2 is determined to become better, both as a superhero and a person. He is currently under contract of the UN, making him one of the few legally registered heroes in New Evo.
Edit: He is also equipped with a modified version of Tachyon's knife (which can now be super heated) as well as a water pistol with a reinforced chamber (so that it is not corroded should he convert the water into Hydrogen Peroxide).