Complex sentence: In a final confrontation with Jubei in the cargo, he has huge advantage and is barely harmed from the battle, even though Jubei cuts off his arm and headbutts his head until the forehead is crushed.
Split into simpler sentences: In a final confrontation with Jubei in the cargo, he has huge advantage and is barely harmed from the battle. Even though Jubei, cuts off his arm and headbutts his head until the forehead is crushed.