So i think this will work the same as the ST exploit so use it whilst it's working.
First you have to clear upto Which Doctor Zum'rah
Also Hydromancer Velratha spawns the totem too, so if you pull her back to that boss you'd have double the totems popping up, meaning double the exp.
Which Doctor Zum'rah
He has 4 abilities :
Healing wave
Shadowbolt
Shadowbolt Volley
Ward of Zum'rah [Spawns level 46 Skeletons, none elite]
Now clear all the graves so no elites will spawn in the fight.
When you pull just place your paladin in the corner.
IF it works the same as the ST exploit, the skeletons should die from Blessing of Sanctuary and he should heal himself.
I've not tested this yet, so it might not work.