I didn't get to play tonight, but I have been dwelling on how X-2's battle system diverged into two different ones with later FF installments. I feel like FFXII took what worked about the system and largely fixed what didn't. Whereas XIII tried to take the concept of the system and do something different with it while retaining the general feel and wonkiness of it. I may elaborate as I go along or save it for a future retrospective.