Pretty good mid budget build (20-25 divine yes Inflation i know ) which has AMAZING clear and Boss damage

1 Button build based on the Doedre's Undoing support gem which makes your CURSE do explosions and trigger CoC Comet

Using Lifetap on the Curse and another Lifetap or Atalui's Bloodletting to avoid any mana costs and convert everything to life cost

With that you can invest in mana and go for Mind over Matter keystone and Eldritch batter and turn on Archmage for decent amount of flat Lightning damage|

Due to no mana cost you can get Zenith support which gives 30% More damage on CoC and your cursed ground

Investing in AOE curse nodes on tree to make your clear bigger and faster curse activation for more COC procs and also going for as much as possible crit multi/chance

Fast metabolism node with Atiziri gloves instant leech will pretty much make you leech back your HP back to full

Was still missing some % of AOE for the 3x overlap on the spell cascade/doedre and also did not invest in Faster curse activation jewels which costed around 3Divines with bad mods

Later on you can switch to rathpith with the newest mana mod for more damage +easy crit cap and also get Fire infused comets from DUELING wand spellslinger

Poe Ninja - https://poe.ninja/poe2/pob/14b87

PoB - https://pobb.in/1pgdTVY9Q8ce ( not setup mostly looking at ingame numbers )