[3.7] Crit. Staff Cyclone, up to 5 million+ Shaper dps, 100% Elemental Damage (Shaper Video!)

Thinking about trying this out. Could this be viable as a league starter for 3.9?

viable in 3.9 ahahah

Hey looks like an interesting build im a very very new poe player but played DB3 for years im slowly getting my head around poe and i mean SLOWLY lol it would be very helpful/useful if you could give me any advice what so ever as to what gems/gear i can use till i can get the skill/gems you state in your end game build

TIA
Xafia