AST's weakness in end game

[HopeEstheim]

What would you propose?

AST has very powerful DoTs with no accuracy check, and a direct nuke that is more powerful than anything SCH has.

The only way it will fully be on par with SCH, however, is if you give it a healing pet.

I don't know, giving a damage reflector to nocturnal field will help AST in terms of dps/healing cause you do both at the same time, like SCH. ^^ ( Plus it will make it unique ! )
I don't want to make posts about balance, sorry.
Of course AST have cools DoTs that cannot miss, but... when you look how much mana it burns compared to SCH...