Name: Secret: The Ethereal Metahuman.
Ability: Lives in a continuous Gaseous state, and is able to alter her own toxicity as well as her shape. Can be renered unconcious with pure Oxygen, killed with Potassium Chloride.
(Looks up at picture) Just found out about her recently in JLA: World without Grown-ups comic short called Young Justice: The Secret. I figured, since she's met Robin, I might as well draw her in the latest show-Robin's-in style, so I attempted Teen Titan. How'd I do?