Bliss plz make artifact challenge about skill by giving us a stat template and disabling legendaries and set bonuses. Don't make it about gear or legendary luck

I'm a prot paly and it seems to be impossible to keep up with some of this.Other complaintsVelen is incredibly inconsistent between pulls where sometimes he will melee attack or cast smite or he might do nothing.Sometimes the boss chases me when I try to get out the decay debuff but the boss chases and melee hits me.