https://pastebin.com/gCxFngej

This is a Storm Burst Occultist scaling extra chaos and using Divine Flesh together with Incandescent Heart To get 75% of ele damage taken as Chaos and 90% chaos resistance.

For scaling damage it uses 2 Shade of Solaris, 169% increased skill effect duration to get Storm Burst to 3.23 duration and converting as much as possible through 2 Call of the Brotherhood + Cold to Fire support.

Since It's an Occultist it uses Hands of the High Templar with 3 curse implicits (Enfeeble, Temporal Chains and Despair) which gives it 24% of non chaos as extra chaos when killing an enemy through Malediction

The passive skill tree is pretty generic, mostly just getting the life nodes, skill effect duration nodes and some cluster jewel shenanigans for some extra skill effect duration and to get max chaos resists to 90%.

skill gems:

6-link: Storm Burst, Controlled Destruction, Elemental Focus, Physical To Lightning, Infused Channeling and Cold To Fire.

4-link: Wither, Spell Totem, Multiple Totems and Faster Casting.

4-link: Orb Of Storms, Increased Critical Strikes, Onslaught, Culling Strike.

4-link: Summon Chaos Golem(lvl17), Cast When Damage Taken(lvl17), Steelskin(lvl19) and Increased Duration.

3-link: Flame Dash, Arcane Surge and Enhance.

3-link: Wrath, Hatred and Enlighten.

All Items have been taken from trade site.

I don't plan on actually making this character this league, but I like theorycrafting and I like this idea so I thought I would share it.