Antaan’s character description sounds like Atros, a.k.a. the raging Red Lantern Atrocitus. The villain debuted in the pages of Geoff Johns and Ethan Van Sciver’s Green Lantern #25 in 2007 ...

The Green Lantern comics don’t have a character named Antaan. But they do have a character named Atros, short for Atrocitus, primary member of the Red Lantern Corps. Created by Geoff Johns ...