PoE The Ivory Tower, Occultist, Cold builds

So discharge will receive a large damage buff, but will be on a cooldown. I'm thinking about ways to make self-casting Discharge work, and i've come up with some archetypes, although none of them feel 100% satisfying. First i thought of an Archmage build to make use of the fact that Discharge now is on a cooldown anyways, so handling the mana cost would be a lot easier. Here is my pastebin for an Occultist Archmage build: The Problem with Occultist Archmage is the fact that while Forbidden Power does reliably generate charges with Archmage, it only generates