PoE Pledge of Hands, Chaining builds

Since the damage on manabond is based on current mana, not mana spent, I've theorycrafted a hiero build based on reducing mana cost of skills as much as possible, which should allow us to control the AOE/damage by controlling our mana. With 9k mana and Pledge, Manabond will cost 4000 mana without any reduced costs. Using inspiration, reduced mana nodes on the tree, jewels, and flask, we can reach 100% reduce mana cost (might be optimal to have at 80-95% reduced though). Mana can be easily restored to full for AOE/MoM purposes using a mana flask (as it doesn't nec