Shortly after changing her name to Green Flame, the Guardians' United Nations funding was withdrawn in the wake of the formation the Justice League International. Beatriz convinced her teammate and best friend Icemaiden into joining her to apply for Justice League International membership. Remarkably, in the wake of Black Canary's resignation and the abduction of several members, the short-handed JLI took them on. Eventually, she once again changed her heroic name, this time to Fire in affinity with Icemaiden's shortening of her name to simply Ice. As a result of the "gene bomb" detonated by the alien Dominators, Fire's powers were dramatically increased, but were less reliable for a time.