So i think its arbitrary to use a builder to level up all heroes it wastes time and makes no sense to me . I personally feel as if the heroes should go “train “ and have their own building or even leave the base area to go train or have them meditate to level up . I am proposing the idea of the developers making a hero update to do this first off it will same time and make a ton more sense because a hero is essentially a regular troop on steroids that protects and attacks .






