Alright, so I've gotten this far into the game. Ansem's first form and Xemnas were both pretty easy. But my god. I cannot for the love of god, beat Ansem's second form. Will someone please help. Give me tips, strategies ANYTHING.
I beat him. In case your still stuck, what I did, was exit the battle and grind Riku up a few (two or three) levels and filled my command deck with curas and curagas. After that I beat him on my first try.