History: (Green Lantern / Sinestro Corps: Secret Files #1) - Varix was an honored law enforcement officer on Naktos who held the planet's Green Lantern Ghrelk. A mysterious illness destroyed Ghrelk's brain, and he handed over his ring to Varix before his illness caused him to harm someone. Varix became a hypochondriac because he feared catching whatever disease Ghrelk had, and his fears were exacerbated when half his world's population was wiped out by the yellow plague of Ghera.

(Green Lantern IV #25) - The Sinestro Corps War raged on Earth, and while Varix, the GLC and an army of superheroes battled the Corps the Anti-Monitor prepared to unleash an anti-matter wave to destroy Earth. With Earth’s destruction, the entire 52 would fall, and he would once again rule all that was. The GLC ruptured the heart of Anti-Monitor’s Warworld, the Sinestro Corps central power battery, and created a shield around Warworld and the Monitor. The ensuing blast nearly destroyed the Anti-Monitor, and he was finished off by Superman-Prime, who betrayed him for having destroyed his home, Earth-Prime. GL Hal Jordan defeated Sinestro in personal combat, and the Sinestro Corps, lacking any leadership, fled Earth. The heroes rejoiced and began rebuilding the damage the Sinestro Corps did.

Varix received a profile in Green Lantern / Sinestro Corps: Secret Files #1.