 Nightwing is chosen to be leader until the original JLA are found, leading the group against the powerful Atlantean sorceress Gamemnae and helping to revive Aquaman to ask for his help in sinking Atlantis, but subsequently returns to the reserve list.For several years, Nightwing leads various incarnations of the Titans and becomes the most respected former sidekick in the DC Universe.However, in the "" crossover, a rogue Superman android kills Lilith and Troia, an event that tears apart both Young Justice and the Titans.