Complex sentence: There he fights the well-trained tiger guards, avoids the many death traps in the lava-filled temple, and defeats Omar, the captain of the tiger guard, who holds the last (and largest) gem.
Split into simpler sentences: There he fights the well-trained tiger guards, avoids the many death traps in the lava-filled temple, and defeats Omar, the captain of the tiger guard. He defeats Omar, who holds the last (and largest) gem.