PoB: https://pobb.in/krjoXGw-G80t

Tldr;

The build uses MoM and mana as the main mechanics.

Defenses include Petrified Blood, recoup and block. By stacking Megalomaniacs, the build achieves high mana regen.

I tried to explain the mechanics used but the post isn't a complete so don't hesitate if you have any questions.