Barrier Invocation + Pact + Demon Form

I've seen a few different builds floating around with different aspects of this build so I wanted to throw my hat into the ring and share what I've been working on. This build is using recoup + pyromantic pact to fuel large demon form stacks (in the showcase I built up to 380 stacks without using the stitched demon cheese).

Showcase (just a random t15 with a breach, nothing special):

https://www.youtube.com/watch?v=LNpsgKNuxt8

Maxroll build:

https://maxroll.gg/poe2/planner/eeq740vs

I don't think this is better than the established low life + high passive life regen build or anything, but I do think its cooler. Its also nice to never have to drop out of demon form even during long maps. I've not stress tested this vs any really hard content, but I imagine it could be "fine" if you're willing to just sit and build huge stacks before going into the boss fight.

Some random things I learned while working on this build that my or may not be common knowledge and/or useful:

• Player ailment threshold is based on maximum life; this is real problem for low life + pyromantic pact because you basically ignite yourself 100% of the time when proccing pact. Stacking ailment threshold + insulated treads seemed like a possible way to get around this but I could never get it to work consistently enough.
• Ignite damage is based off the pre-mitigated hit. For pyromantic pact that means you're taking 20% of your total life + energy shield as damage over the ignite duration. This is why I take reduced ignite effect on the tree; it essentially increases our effective flask regen by 55% (by reducing the amount of damage the ignite is doing to us). This is also why I convert comet to lightning damage and use shocking siphon support; its one of the few percentage based healing effects available to use as we cannot use the unique shield commonly used in other barrier invocation + pact builds.