In Citadel of Flame Path 1, in the event just before the Legendary Effigy, you have infinetly respawning mobs that DO give XP. With full buffs it can reach to around 2k xp per mob and they die fast and there is a lot of them.
I see streamers doing it and many other ppl i know, they have mastery lvl 20+ after 2 days of HoT being out by just standing in one place pressing one button in one direction – basically acting like a bot.
If this is NOT an exploit like some tell me (since it’s using game mechanics that were in the game before HoT came) then I would like a Dev confirmation kitten.
ATM I can’t do the exploit for fear of being banned or rolled back, but at the same time I am being left far behind in mastery progression compared to those that are using it.