Volcana

Claire Selton/Volcana is a character from Justice League and is a minor antagonist in Knights of the Multiverse Season 2. She's a pyrokinetic supervillain that works with many other supervillains and criminals in the Secret Society, and was a part of those that joined up with the Glemy Faction in a bid to conquer the known Multiverse.

Pre-Series
As a teenager, Claire Selton showed an aptitude for pyrokinesis—the ability to start and control fire with her mind. Her parents sent her to Metropolis's Center for Paranormal Studies so that she could learn how to control her power, but she was soon spirited away by government agents working for a program called Project Firestorm. They planned to train her as a living weapon. Given the code name "Volcana", she was trained and indoctrinated by government agents, but rebelled and escaped.

Now a fugitive, Volcana survived the only way she could: by stealing. This caught the attention of Superman. He unearthed the government agency and its renegade chief, Kurt, and caused it to shut down. He relocated Volcana to an abandoned island where she could find a chance to reorganize her life and turn over a new leaf. Superman made periodic supply deliveries to the island and Volcana took the opportunity to flirt with him when he visited her. During one such visit, she commented that he was always polite and that his mother must have raised him well to which he answered that he'd been lucky in that respect and she agreed with him; showing bitterness that she had never been that fortunate.

Years later, however, she was recruited into Grodd's Secret Society, where her powers were augmented by Lex Luthor by giving her flight capability.

Skills & Powers

 * Flight

Using her fire powers in offensive form, Selton can project blasts and lines of fire, concentrated bursts and even walk unaided without harming herself. However one weakness is her dependency of oxygen needed. In a sealed environment, she quickly exhausts it and weakens in power and easily asphyxiates.
 * Pyrokinesis