Fun game for about a week or two but after that is just not fun. Only way to consistently summon (f2p) is to grind Quest which is good but after that. Daily logins is your source for maybe 30 gems a day. The amount of power and storage it takes is not worth the amount of content. The drop rates are atrocious with boring methods to "awaken" your units. The animations are very well done but it can't rely on good art to keep the game alive.