Are there any Stormweaver builds using Choir of the Storm amulet?

I am almost level 78 on my Stormweaver Sorceress and I was really eager to try out the Choir of the Storm unique amulet but can’t really find any builds that make use of it (aside from the bonkers one using the Temporalis chest piece to create a near infinite proc loop).

In A-RPGs I typically play the caster archetype and my preferred playstyle usually involves a spammable spell that triggers another even more powerful spell. Naturally, I gravitated towards the Cast on X mechanic in PoE 2 and my initial plan was to use an Arc > Cast on Shock > Lighting Conduit setup but after they completed neutered the energy generation I went looking for alternatives and the Choir of the Storm is really the only thing I could find which works in a similar way.

I see two big hurdles to making a build like that work: (1) scaling the damage of Lightning Bolt without access to things like Temporalis; and (2) the fact that it competes with Everlasting Gaze which is all but mandatory to help facilitate mana stacking for Archmage via Eldritch Battery.

If anyone has ideas I would love to hear them!

I am currently working on a Stormweaver build using Choir of the Storm without Temporalis and the TLDR is that its a viable and fun build. Maybe not as powerful as pure spark or lightning warp build, but it can be built with low budget, scaleble with mana and can quickly clear maps.

Gems:
- Lightning bolt: Spell Echo, Inspiration, Ingenuity, Considered Casting
- Spark: Ambush, Pierce, Acceleration, Persistence
- Eye of Winter: Chain, Fork, Unleash, Ricochet
- Frost Wall: Glaciation, Icicle, Spell Cascade, Overcharge
- Elemental Storm: Magnified Effect, Controlled Destruction, Electrocute, Neural Overload
- Archmage: Lightning mastery

Uniques:
- Choir of the Storm
- Maligro's Virtuosity - (I bought it for 40 ex, currently around 70-80, not strictly required, but doubles your damage)

Gear focus:
- Critical hit chance, Spell critical hit chance
- Lightning skill levels
- Lightning skill damage
- Resistances

Keystones:
- Mind over matter
- Eldrich battery
- Chaos Inoculation

Required nodes:
- Shattered Crystal

Recommended nodes:
- Careful Assasin
- Pure Power
- Raw Mana
- Arcane Intensity
- Invocated Efficiency
- Stormcharged
- Leaping Ambush

Skill tree focus:
- %Max Mana
- Critical hit change (crit bonus is irrelevant if you have Maligro's Virtuosity)
- Intelligence
- Mana

Ascnedancy nodes
- Constant Gale, Force of Will
- Tempest caller, Rain Dancer

So basically you want as high critical hit chance as possible. Lightning bolt will hit a lot and will trigger itself reliably. You want around 30-40% crit chance for spark and around 40-50% or lightning bolt. You fill the screen with sparks and if you encounter rares or uniques you cast a Frost wall and an Eye of Winter on them first. Eye of winter applies critical weakness which doubles the crit chance of lightning bolt. Also because of spell echo ligtning bolt will cast twice so even without critical weakness it will trigger itself with a 75% chance. You will clear maps even if you don't have crazy damage number for spark. Currently my sparks DPS is 12K and a single spark will do only 275-5302 damage but lighning bolt adds 15K damage to it when hit (which is also echoed and has a small area). Frost wall also has very high hit chance so it will trigger lightning bolts when you use it to trap a boss.

Another important line in Choir of the Storm is 'critical hits ignore enemy monster lightning resistance'. This means as long as you scale crit chance you can forget ligtning penetration, conductivity and exposure. This is actually a huge help.

Elemental Storm is not used for it's damage, but because you trigger it a lot, you always have at least one on the screen and with Electrocute and Neural Overload it paralyses enemies.

As for survivability as long as you have 3-4K mana, you can manage it without ES, but it is recommended to keep discance and prefill the screen with sparks.
If you desperately need ES you can use Ghostwrithe or Atziri's Disdain but you will need to add ES scaling in your tree at a cost of damage nodes. I think it is better to just scale up your mana.

Hey, this sounds really cool.

Any chance you could do this on a Monk Invoker? Is Archmage necessary, or could you throw in a Cast on Crit setup instead?