After 1 week playing, here's a review For a game which relies on owning heroes to enjoy playing the game, the developers are doing a terrible job at that! Why? Drops rates are non-existent -0.1% for legendary drop -10% for epic drop While getting advanced stones are locked behind events that an newbie can't complete in the first place. The amount of free gems they give u only allows u to get 1 additional advanced summon /day Guild system is utterly useless.