The JLX fled to their submarine, the Wavecruiser.
In turn, Mister X kept Angelhawk's metamutant origins a secret. The battle stopped after Mister X contacted Angelhawk, informing him to fake an injury, which he did. In an epic battle shown in JLX #1, the entire JLA fought against the JLX. After the JLX had freed the Mariner, the JLA went after them. Together the team became known as JLX, and freed the Mariner from where the JLA had locked him away. Mister X assembled Apollo, Firebird, Nightcreeper, Mercury, Wraith, and Runaway. For unknown reasons, Dark Claw was the only metamutant on the team not contacted by Mister X. They were contacted by the mysterious Mister X, who had once funded the JLA, until the JLA discovered that he had a criminal record.
However, most of the metamutants in the JLA believed that the Mariner was innocent. and the Judgement League Avengers went after him. The Mariner went on the run, and S.H.I.E.L.D. The beginnings of the JLX started with JLA #122, when the Mariner was framed by Will Magnus for the destruction of some Roxxon oil tankers.
