So i cooked a bit and got my starter build.

The core concept is:

• automate General's Cry with a very low cd
• use a high lvl/quality gmp Unearth for quick corpses
• ???
• Boom

PoB: https://pobb.in/kvzIihRWzG6e

Since you can play this only after cruel lab you lvl up with sunder and a 2h up to that point.

Some Uniques i want or need to make this work:

• Cospri's will for guaranteed poison. Blasphemy helps and later on Curse on Hit. Most mobs shouldn't even need to be poisoned in the first place.
• Koam's Command for extra corpse pop dmg. If it stacks which it should.
• Obliteration as the best and cheapest weapon. Extra pops and scales the explosion greatly.
• witchfire is just QoL mapping flask
• Mings heart is optional, but insane for it.
• Elegant Hubris of Caspiro to deal with the huge Attribute Requirements AND to slap every attribute note with a tattoo
• Balance of Terror with Despair Wither let's you remove the withertotem for bosses, huge QoL.
• Solstice Vigil is totally optional and i currently tend more towards dragonfangs Flight or Ashes of the Stars for Unearth or Defiance of Destiny for defence.

Since the Unique Attributes are very high i would specc 80 Dex and 80 int on the skilltree at the start and remove it over time.

In terms of gems there is a lot of flexibility and i toy around with whatever feels the best in the end:

• Unearth + Gmp + lifetap + Spell Echo or Faster casting is the core, Empower and Enhance are the icing on the cake.
• autoexertion + general's cry + inspiration to trigger corpses and to keep the manacost low.
• flamedash is the movementskill of choice, can add shieldcharge later on top. Blasphemy temp chains basically only with solstice vigil. Selfcast or arcanist brand for bosses.
• withertotem for wither. With balance of terror not needed at all.
• Malevolence + a herald or purity OR Ash. Ash is nice for clear, purity for singletarget. Would just swap them depending on the content. T17 + bossing HoP, the rest HoA.
• cwdt vaal molten shell with duration is nice to have extra ehp on demand and automatically. Despair is in there if the witchfire brew runs out and for balance of terror later on.

The passive tree is pretty flexible. Can cut all the block and go dual obliteration. Remove or add cluster jewels and so on.

Corpsewalker might be another qol swap in for mapclear.

Tattoos are flexible, i would want CDR for warcrys, but phys dmg and resists are fine as well.

Thats basically it. The core is very cheap and ofc for rare items, corruptions and so on you can pay as much as you want.

Oh and the last ascendancy node can be the phys to fire dmg taken or the Defiance node. One is good for big phys hit, the other for swarms.