You may remember a time when we didn't have the internet to look up any kind of combination attack from PSIV, who knows, maybe you didn't do that anyway.
But, certainly in my first play through, I experimented a lot with combinations of moves, one such example was using all five Rings of the Stars in order Algol, Palma, Mota, Dexo and Rykr.. I guess I hoped for some kind of.. special defencive super move... alas, nothing.
Some others were tried too, but I unfortunately forget what they were.. The rings was one that stood out, I think.. because it was .. well.. not involving any kind of move or tech.
Oh.. I just remembered one.. haha. Vortex and Zan. I figured, hey.. wind.. plus more spinnyness.. equals.. bigger wind.. xD