[FaeLenx]

Make usable by sub-classes, but remove the talent that makes you immune to invocation break via damage. Problem solved. You now have a reason to pack HSDW and there is now counterplay. Evokers still have their usual setup, everyone else benefits, and eventually when everyone agrees that its a stupid potent ability, it can be removed and replaced with something more fitting.

Nerf everyone but evoker therefore buffing evoker so eventually we can nerf evoker too?

HSDW is fine. Don't touch a class that is performing exactly where it needs to be doing exactly what it needs to do.