What if you could set your hero to protect a certain building so you could set them to protect the dark elixer storage or others like your gold and elixer storages.
E.g When a archer attacked the building protected by the heroes the heroes could automatically attack that archer.
I like the idea, but that would completely remove the need for the hero platforms. Meaning they would all be moved outside the base and be as useful as builder huts. People could move the platform way out of the base and set the heroes to defend storages and defensive buildings on the inside