PoB says average hit of 1M. Storm Cascade does 5 AoE hits. With trigger bots thats 10. You can probably get 10-20M DPS if less than half of the cascades hit. Way more if you go in a corner and they all hit.
Basically stack abyss jewels for Lightpoacher and Shroud of Light scaling. Stack phys damage for all the extra ele damage you get. Stack sources of spell damage, more spell damage, Inner Conviction, Ralakesh's Impatience, and of course Power Charges. At this point it's a glass cannon, especially going low life + petrified blood. Don't really have sources of life regen so maybe LL is not a viable option.
Sabo Triggerbots work great because we also have no mana cost for this skill.
Need to figure out how to trigger it fast enough. So far spam clicking cyclone on 1-2-3 seems like the best option, or scroll wheel clicking to stay within the game ToS against macros.
https://pobb.in/u1ACIWcPyWF-