Board Thread:Help Board/@comment-115.164.53.138-20151001153831/@comment-26453985-20151114041955

^ what they said, Atharvan>Crystal palace>Changing the world.

Its easy to auto battle, drops include imps, totems, pots, ect. Drops a variety of useful items such as materials for fujin potion. You can even bring less units or use units with low hit counts to speed things up. higher lvl quests only give as much as an extra 5-6 xp per energy, you're not missing anything.