Hey, recently started theorycrafting possible league starters. I tried to rely mostly on proven concepts. In this build this happens to be Spectral Helix, a bit of Elusive stacking, Spell Suppression (may get nerfed but It is so easy to cap with Raider so it will still be used).

With just Frenzy Charges (Raider), Elusive (refreshed with Withering Step regularly) and Chill (Vortex+Bonechill on LMB) ticked against a Sirus config, this setup nets 3.6Mil Dps assuming 2 Hits (should be the average) but with good positioning, 3 hits are possible; this would net 5.4 Mil dps.

Build is a bit glass cannon in its current config, but this is only a league starter version and there is plenty of room to grab more life and less offensive nodes as your gear gets better.

https://pastebin.com/ntXUce37