Spectral throll <Help needed>

Hey everyone, so after getting one of my other characters pretty high on endgame gear, i wanted to make a fun build just for fun.

I love Spectral Throw and i`ve always wanted to do a 2 handed version.
After dying to Augustina Solaria i got the motivation to do it.
I`ve made a Deadyey for helping with the accuracy and the attack speed, so if anyone can give me some insights of how to make it better i would appreciate.

So far i managed to do 600k DPS on Shaper, with all gens 20/20, and some not absurd expensive gear.

Im linking my PoB so you guys can see the tree and give me some toughts.

Im working on making a scion for the Augustina Solaria Cosplay build.

The only core item, i think is OROS, for the dps


PoB


*** One doubt that i have is : Elemental focus wont let me ignite, BUT Oros have a 20% chance to ignite built in the item. If i use elemental focus and ST on my chest will it be able to Ignite? If the answer is no, can i use the totem without elemental focus and it will ignite, making my Immolate on chest work?***