So good news, it works and i have literally infinite bonestorm, with the caveat i have enemies to hit. i call it the bonemist build. I do not millions but good damage, hundreds of thousands 1-2, nothing to write home about, however the dot damage is of the charts. Currently lv 80 breezing through t60s.
Thanks to some wierd interaction between osseous gale and lidless wall, wverytime it procs a new bonestorm it has a chance to consume a corpse to extend the life of YOUR bonestorm. Here is a video of me hving a single bomstorm for a whole minute.
But back to your point, laying down blight starts proccing dark, then use blood soaked aspect to make ur bloodmist porc dark, coupled with explosive mist to proc dark from corpse explosion, void aspect to keep them in the blight, osseus gale and shielding storm coupled with lidless wall and protector aspect to ensure you ALWAYS have a shield and ALWAYS have bonestorm and bloodmist, given youre using auto curse heart with cooldown passive on curse. Throw in both shadow aspects, decay and blighted to top it off and boom, you ARE the shadow. This is one of the funnest build ive played and i created it, has lots of room for play, its minionless and you could use minions and ring of mendeln and im sure it would be even more insane but i domt have that so. paragon is too much to get into but i got to t4 at lv 57 w this build no lidless wall, just use corpse tendrils aspect till i got it. Anyway check out the vid and try out the build its acyully insane.