Let me start out that I do enjoy the game and I have spent money in the game. That said this is a heavily p2w game. As said earlier from a review the whm character are gone for good. I played this game for months and only was able to unlock two of the premium hero which are whm bokugo and aizawa (you will need the ex cards from them to make them even worth it (to max lvl you need 11)). I tried getting some premium character but it will require luck or money in order to obtain them.