Hi I have played almost the same build with Sns or Flail /Mjolnir a lot and the main problem is that the teammates in Random Arena die like flies. They make a kill and then die. I think it need a team to use the synsrgie of a CC debuff tank.
Yes a premade would be best. The biggest problem with this build is lack of damage. You probably want a high DPS and healer teammates or like 2 fire staffs for most success.
I did not upgrade the hammer because I dont have enough Dark Matter so I keep switching the Artifacts out. But I would recommend Vicious or Sundering Shockwave if you want another ability perk.
