I think having an AOE DOT is all AST is missing from it's kit, but just make that it's level 72 skill when we hit 5.0.

I agree we need a 4th healer that sits as a counter to AST's buff system, but please don't forget that we had N.AST putting out better mitigation per mana than SCH was just a few patches ago. We're finally at the best sweet spot of the three in a while.