You can invest money and time to raise a hero and then devs will nerf and same time buff other heroes and change totally the meta of the game and forcing you all the time to invest or buy another hero which again will not last for long. Changing the specs of a troop or hero and misleading players all the time just for profit! That is the real truth! How Google play can accept this and not taking actions against them for customer protection? Buying a Porsche it might end as a Mazda there!