Hm you get 1k exp per orb? So 4k per cast? Why im only getting 340 exp per orb at 101 with full rested rested?
im doing this on my warlock right now and you dont even need the quest when hes in the tower, i flew there with zone first quest, went over and hes there you can afk, just wedge yourself by a wall and out your voidwalker in the centre of the room takes like 10-15mins for the voidwalker in defense mode to kill him he respawns in like 20 secs ive gained 3 levels so far im geting about 3million exp and hour and my rested exp isnt going away.