When you do a NMD or a ENMD if you have earned the Forgotten Wisdom the EXP orbs will drop in the NMD and in a Strong Hold. But after you have finished the Strong Hold and back into the NMD they will no longer drop.
When you do a NMD or a ENMD if you have earned the Forgotten Wisdom the EXP orbs will drop in the NMD and in a Strong Hold. But after you have finished the Strong Hold and back into the NMD they will no longer drop.