I, and many in my alliance, have spent good challenge coins, costume keys, Atlantis tokens, and Valhalla coins to only be constantly disappointed by receiving 3 star heroes. And many times duplicates of ones already owned! Is there any way to increase the percentage of getting 5 star heroes? Money doesn’t always buy you good heroes and it’s very discouraging to see all your money and saved-up chances be wasted on feeders. Thanks!!