most efficient way to farm lvls

I feel like ive spent an eternity trying to lvl all the rares i just farmed. Advice?

Where do you farm? South tip of crescent island is good. Get 2 arks with 3 ark move lv60+ and the rare you found and repeat.

Go Deucalis, 3 waypoints to south, 1 to the west. go with raijin + angelon + monster u want to lvl.

Speed raijin up and use his 3rd move.