PoE Crest of Desire, Physical builds without Mageblood

Theory tag because I have a PoB and no character to actually show it with. But I've tested the mechanics, and know they work. The question is whether or not my PoB is accurate. Where does the come from? The idea is that buff up , you spawn all your worms, throw the beartrap on your target, then use call of steel 4 seconds later. To do some math: PoB reports that the total stored damage of our Impale is 1 million. The Impaler inflicts 4 additional impales, so each beartrap is 5 million damage in an AOE. With 5 worm flasks and a bit of reduced flask charge

This build revolves around running around with reverse knockback cyclone, blowing things up with Molten Shell, triggered with reflected damage from Hiltless and Defy Pain. Transcendence is necessary, because otherwise, a pathetic ~7k phy hit from defy pain would only tickle the molten shell. In PoB, this build is near-immortal with enough damage for end-game content. Super fast boss kill speed when you can get Vaal molten shell up. The only thing strong enough to kill it, is itself (or any other large phy hit while molten shell is down.) But I have some concern

tldr: molten shell go boom for \~2M dps, generally invincible, and maximum jank I discovered an interesting interaction with Power of Purpose (PoP) awhile back, namely that any "Gain maximum mana as extra maximum energy shield" modifiers actually use the pre-conversion maximum mana (verified in game). This means mana stacking gives us both armour and energy shield. However, I couldn't figure out how to get reasonable damage out of the build... until this patch! The core of the build is to stack mana to get over 50k armour, to make maximum use of Molten Shell. Molten shell gets popped by atta