The final battle is split into two actual missions, I don't know what would happen if you failed the second fight, I guess they'd put you back at the beginning of phase 2, this was pretty easy, especially compared to other final battles in other expansions. This guy ain't got nothing on Alexander, especially if they separate the battle into two parts so you can pick up where you left off. I left in the cutscenes at the end of each phase, the cutscene after phase 2 takes longer than the actual fight itself. Wish they made that fight a tad harder.