I like chemist as an idea but I don't think that chemist can fit into the current state of healers.

The devs have with their current design limited mix much more heavily than had they actually tried to release in HW.

Mix cannot give anything but dmg boost, anything else would let ast players point at chm and go why do they get varied effects with their gimmick and not us.

Any sort of healing tied to mix would have to be pretty potent to require multiple gcds ala mudra/ steps which would then lower basic heals to compensate. Yet this would then cause issues ala 5.0 ast where it is too far behind it's competition, which would then be buffed up making the more potent heals redundant.(just think of lower skilled players or stuck with abysmal tanks you couldn't use the the mix gimmick).

Any straight dmg ala Dots nukes etc would again be potent while the numbers would be fine to balance the fact they get both a nuke+ dot and theor gimmick gives them access to more if skilled is going to be cause a lot of healers to jump on board fast because so many people want something more to do while playing a healer.

Chemist coming into the current state of healers would have a watered down mix and I would hate that to happen to it.