I had muscle memory, but I think it was QRRASE or something like that then put on weapon. Next time you attack, you cast a row of exploding icicles that put wet status and electrocute your enemies and really slow them down. Almost nothing in the game can resist. It makes the game stupid easy. You kill any boss in a few hits. You can also cast it around you, but it's way too easy to kill yourself. The combo is hard to pull off the few first time, but once you get the touch, you're unstoppable.

Also, cast SAFE on you regularly, easy to remember and its a very strong defense.

A lot of people use a combination of QFQFASA beam. It's high damage, but you're a sitting duck, never liked it.