Board Thread:The Quarters - Q & A/@comment-87.173.70.148-20180311151001/@comment-27659888-20180312081452

When you reach level 10 you can choose your class. After that you can change for the cost of 3 gems. Alternatively when you rebirth with an Orb, thus return to level 1. You receive a free orb of rebirth after level 100.