Feels almost like playing PoE1. The base idea for the mana version is from u/Steel_Neuron. This is just my take on it and a bit more currency pumped into it.

Its just INT and crit stacking to push Doedre's Undoing's numbers up. The rest is mana gear for defense, super cheap because nobody plays mana stacker.

The current setup is a lot more damage than using the new unique staff. Rare weapons out-scale it with some investment even if you need to use lifetap in your 6 link.

Something I do not see a lot of people using is the new unique belt with wither runes. Its 80%! increased wither effect with a perfectly rolled belt!.

poeninja: https://poe.ninja/poe2/profile/Zerber-2188/character/Zonko_BM

EDIT: Looks like im a bit dump and can't get Reddit videos to work. Here is a short Youtube clip https://www.youtube.com/watch?v=a7-GL8dr4Bo

https://pobb.in/Az1-FYImT5x2

Keep in mind that Doedre's Undoing has no DPS in POB.