Wow, you are crazy good with timing your arcane blasts, and your heals with your water and firefields! I for one love using Arcane Brilliance and Blast myself when running s/d as well as arcane shield, though I dont have the convenience of casting my own water fields xD The arcane utilities are definitely great help to sustain in my opinion.
My question though is how does this build compare when you run into 2v2’s, 1v2’s, etc. where you are basically getting focused with crowd control seeing as arcane shield seems to be the only legit stun breaker. I’ve experienced firsthand the pain of arcane shield being on cooldown when I get stunned 3 times in a row :P