One thing I forgot to add has to do with the bubble war. I have 2 suggestions that can make aura use much more dynamic and/or interesting. First idea is that all bubble auras have +15% dmg boost for their school, (including life, balance and death) With an additional property that is unique to the class. The additional properties can include:
slight increase accuracy (storm) Slight increase to crit chance (fire) Slight increase to crit defense or regular defense (ice) Slight increase to power pip chance (balance) Slight increase to healing (life) slight decrease to healing (death) slight decrease to minion cost (myth)
The damage factor should be universally the same, or removed completely. There can be some situational advantages to the bubbles in later boos cheats to call for timely bubbles.