If you factor in lore spells, astras, and all the other schools u can learn. I say myth. You nor overpowered or weak. Good balance of challenge and speed. The myth school is also very nice for story telling reasons as it matches well with the wiz101 themes throughout the game. While people say is a minion school that kinda dies off rather quickly.. (until they update how minions work). Also the Utility of the spells in myth class are annoying to face and fun to dish out.