Final Crisis: Legion of Three Worlds #3

The Legion of Super-Heroes calls in reinforcements against Superboy-Prime and the Legion of Super-Villains as the Crisis of the 31st Century continues. While Superboy-Prime comes face-to-face with the last of the Green Lanterns, Brainiac 5 and XS attempt to ignite an electrical storm using the lightning rod, which is destined to turn the tide of the war.

Characters: Adam Orion, Ayla Ranzz, Bart Allen, Beauty Blaze, Black Mace, Blok, Bouncing Boy, Brainiac 5, Chameleon Boy, Chameleon Chief, Chameleon Girl, Colossal Boy, Cosmic Boy, Cosmic King, Dawnstar, Doctor Regulus, Dream Girl, Earth-Man, Element Lad, Emerald Empress, Esper Lass, Ferro Lad, Garth Ranzz, Gates, Gear, Grimbor, Invisible Kid, Jacques Foccart, Karate Kid, Kid Quantum (Jazmin), Kinetix, Laurel Gand, Lazon, Lena Luthor, Lex Luthor, Lightning Lord, Luornu Durgo, Magno Lad, Mano, Micro Lad, Mist Master, Mon-El, Mordru, Neutrax, Night Girl, Ol-Vir, Persuader, Phantom Girl, Polar Boy, Princess Projectra, Radiation Roy, Rond Vidar, Saturn Queen, Shadow Lass, Shrinking Violet, Silver Slasher, Sodam Yat, Spider-Girl (DC), Sun Boy, Sun Emperor, Superboy Prime, Superman, Tharok, Thom Kallor, Timber Wolf, Time Trapper, Titania (DC), Tyr (DC), Ultra Boy, Universo, Validus, White Witch, Wildfire, XS