Burst appeared along with several other super powered "villians" (their true intentions are not yet known). The team lead by Lobe, including Bouncing Betty, Thug and Verre, claims to want to save all of the world's mutant population.
Burst was created by Matt Fraction and first appeared in Uncanny X-Men #515.
Both of Burst's appearances have been alongside Lobe and the rest of the team and in both instances has been defeated by the X-Men.
Major Story Arcs
Burst and the rest of his team kidnapped a clone of the marauder, Scalphunter, and forced him to deliver 5 Predator Xs, that Lobe had recreated and modified. Scalphunter does in fact deliver the Predators, but they are all killed by the X-Men.
Wolverine, Colossus and Psylocke are sent to find where the Predators came from. Wolverine and the team are able to find the group, after a brief encounter with Fantomex, and Wolverine stabs Lobe in the chest.
Burst appears again alongside his team as they stand against Angel, Storm, Northstar, Dazzler and Pixie at Lobe's unveiling of his artificially powered X-Men. They are defeated off panel.