Yang's Recurve Bow + Dead Man's Legacy Quiver is more or less what you need to run the build i used. Multishot (Arsenal) gets further boosted by Cindercoat, Stone of Jordan and Magefist. I also had a well rolled Hellfire Amulet. Rest is pretty much random.
I'm happy to help anyone in Season Journey progression, i'm on HC EU, add k4b00m#2444. Cheers!