I think clash of clans should have an opposite to dark elixr, somthing like silver or platinum, it would function similar to gold/elixr. so you get the dark elixr drill and the silver mine/platinum mine and the first time you buy these you would buy the drill with gold and the mine with elixr but every upgrade and new mine/drill you buy after you have your first ones you would have to upgrade with dark elixr/platinum,silver. I would appreciate feedback on this idea.
