Complex sentence: He's a somewhat reluctant member, preferring to stay on Bizarro World and help the Bizarro Justice League against Bizarro Luthor and Bizarro Doomsday, he's forcefully taken to Qward to take part in the Sinestro Corps War.
Split into simpler sentences: He's a somewhat reluctant member, preferring to stay on Bizarro World and help the Bizarro Justice League against Bizarro Luthor and Bizarro Doomsday. He is forcefully taken to Qward to take part in the Sinestro Corps War.