IC Chaos tends to spam on moves that happens to be your weakness
It also tends to recover much quicker than any other character after being hit an attack..
It loves to do a BRv right after you do an HP move.. What sucks even more is absorbs a whole lot of Brv
The only two characters I was able to beat him with are Squall and Cloud
Although, it seems that magic users does bode fairly well against Chaos though; I was practicing with Terra against a Lvl 100 Chaos and I seem to do okay...