The rotating shields make this really good for the laning phase, since by the time you destroy one shield, the other one rotates in the way, giving the user roughly 460 effective health. It's almost like a better version of divine barrier, which is already cracked in the laning phase.
Would piercing/AOE moves like Geist Bomb or Paradox Carbine go through the shields and hit the user?
I'm not dissing the idea btw, cuz I do like the thought put into this, though I feel like it's a hard balance between being really good in the laning phase, and then falling off in the mid game.