I don't exactly see the point of this, yes it would be convenient for us to have heroes upgrading and still use them in war. But besides the point it doesn't take that much patience of a person to wait till their hero is done to do a few wars and upgrade them again. Compare it to this, you have all of your regular barracks upgrading and go into war, regularly we'd be able to only use dark troops and cc, but this is like saying we could also use elixir troops in that situation.



