QisTopTier
XisBannedTier
Yeah, make sure to read your skills. I just jumped on my friend's Thaumaturge to see what was up. Each spell has an additional effect that can raise/lower the cost of abilities as well as the damage they do.
Blizzard > Fire is extremely cheap to cast, for example.
You never want to cast fire out of Ice stance if you can help it, first it only gets rid of the ice stance, also the fire is extreamly weak, second you have to cast another normal damage fire just to get into firestance