I'm the worst, I know =P
It's hard to come up with a use case for celestial when the best ability they get leveling is... soundburst. Which is twistable. I'm sure ameliorate feels good when it lands and all that but it's just not all that useful in most places.
With dreadkeepers and ring of winter's chill you'd pretty much be set for damage unless you want to use a bunch of stuff out of soul eater for debuffing. You could technically run mostly defensive and melee threat gen stuff and as long as you have dreadkeepers, ring of winters chill, and the winter court necklace and winter crown for extra defenses and utility- all your other slots can just be total defensive stuff. You can't do anything to add damage beyond that other than upping DCs and there's no reason to try that for harder content when you're CON basedSo the icon of bitterwind gives 193 incite, and Nocturne ring gives insightful 86 incite. So that's a nice chunk of incite and 43 to intim total from both items isn't bad either. If I run US destiny I would take Commanding Presence 3 tiers for another 450% threat generation. Celestial mandate also is 2k hate ever 6 seconds and if i really wanted to i could drop GSC and you got my back from FI tree and pick up brutality in ES for 75 more threat generation. But I still need to take some time and sit and think about dps gear swaps for solo and farming, its on the agenda for sometime this week, maybe??
Should be a pretty easy time gearing, honestly.