PoE 3.23 Affliction, 3.24 Necropolis Cold builds

I started the league off with Aer0 cobra lash build and I'm barely in to maps but it is feeling just really awful. Mapping is just really painful. Cannot even attempt Affliction stuff because especially my single-target is abysmal. I know I'm missing uber lab and only have 4 link and shit gear etc. but I've played enough of this game I know something is seriously wrong and getting a few small upgrades is not gonna cut it. I am literally killing some regular rares for a minute or something if they are any tankier. Also if they do a

!Not a serious build! Just experimenting with Poet's Pen and Frostblink of Wintery Blast. This "build" was the first idea that came to mind when the skillgem info was released.Since Frostblink of Wintery blast has no cooldown, and no charges (but a hefty cast time with no "instant" use), it is really beneficial to trigger it. Whether it's traps (I saw Waggle experimenting with that) or Asenath's Chant, or simply Poet's Pen. While Asenath's Chant and Poet's Pen add a cooldown, we can reduce it in a few ways: 1. Haste watcher's eye - 40% 2. Boots - \~30% 3. Badge of the Brotherhood - from 70

I have pretty much everything I need to swap to LL except a belt. Crystal belts with 14% cooldown recovery seem to be absurdly expensive, so I'm trying to craft my own. I really only want a decent ES roll and 14%+ CDR on it (I'm already overcapped on res except chaos), and anything else is just gravy. Anyone have any idea how I would go about crafting this? I already have an ilvl 85 shaper crystal belt. I currently use Ice Nova of Frostbolts in my main CoC link and Frostbolt in my Cospri's. I see a fair amount of people using