I tried a similar build out that got me deep into NG+, but it felt like it was lacking something. That build I augmented and came up with a preferred out come. This is the most damage I have seen in the game so far, and it one shots bosses. You're also insanely tanky.
Hysteria - Necessary for the build. You will be attacking at 20+ attacks per second late game without much of a problem. The over heal from clemency and guidance synergizes incredibly well with Glacial Core and Essence of Frost for permanent scaling HP gain and insane damage output. Essence of the Giant could be replaced, but the health you gain that synergizes with your passive and Glacial Core is too good to pass up imo.
Arrow Storm - Nothing much to say here, it needs to be up before popping Hysteria. Gems feel throw away, but its just because they are too good to pass up. Virtue or Momentum is good for early game, and at late you can swap virtue out with a different one if you would like. Essence of Perfection wouldn't be a terrible pick up or keeping the Wealth Essence from the early game. I opted to drop Wealth, because gold was no longer an issue.
Umbral Edge - Huge steroid buff for your AAs. Pretty straight forward with any Arrow Storm build imo. Twilight and Night Sky work well together and adds a burst of AS and healing which funnel into your Glacial Core as well. Essence of Metal for CD to always have it up. Virtue would work in this slot as well.
Any - This slot is relatively useless and you won't need it late game. I was using Winter's Dive and Roar during the early and mid game respectively. If you can get an early frost Essence, pick up a frost move to try and stack early on. Once you get Glacial Core, you will no longer need to stack via the memory itself. Predation amps up your Glacial Core even more, and it will completely one shot bosses.
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