PoE Cast when Damage Taken, Arcane builds

So, I was watching Jaamon's channel on Youtube (good Youtuber, good builds in general, recommend this guy) and he put up a pretty solid rolling magma ignite build. I worked at it a bit based off his stuff and came with this idea of using stormbind + blackflame + Eber's unification + incandescent heart. It turned out pretty well, but only in theory. Just a note, I haven't played this at all. This is not a post to say "go play this build" or "this is going to be great in 3.17". None of the build is insanely pricey. Blackflame is like 2ex. IH 6 link is probably 2 ex. Matyr is like 40c. Most of

Buckle up, because this turned out long. TL;DR: I think there's a lot of potential here that people aren't exploring because the skill feels clunky at first. Since the start of this league, it's been my stubborn obsession to make Stormbind work well. I think I've done it (keyword think -- I don't play a ton). Here's a rough POB based off my own character but with some of the supports and gem levels idealized, though I haven't worked on itemization. I'm sure there is plenty of optimization to be done both there and on my passives. So far I've done up to T10