I just got 3 skillbooks from the 135 star reward on hard, but lost them cause my game crashed. Gamechangeing, 3 epic skillbook means everything for me atm when i have 2 heroes who can get -1 cd on their skills. And i can’t even grind them back in any way, cause the reward is already ”taken” according to the game. This can’t go on, and is not acceptable. I’ve lost 2 heroes too but those i can atleast grind back.