100% agree about Rampart. Once I got bored of the Full Swing punt, this felt like way the best tank option.
Diabrosis is my AST default. I was frustrated by the long cooldown at first since you really want it before doublecast gravity, but realistically much shorter would make it OP. You really have to stay ranged with the squishy classes - any foray into the melee gets you deleted. Oh and I want my 4s back on Epicycle, dammit.
Still too much CC for my liking.
My main worry is that when the zerg splits, an enemy on full zerg just annihilates the smaller numbers. I think this will only get magnified as premades find the ideal stack.
The meteors need a graphics detune IMO, there is already too much mess even on "some effects" and this just gives me a headache.