Change the system of lightning spells
Since now the lower lvl players with town hall 7 and 8 love to use 3 lightning spells on the Dark elixir storage of another player. I think Supercell needs to come out with an idea to counter that. I'm suggesting maybe the player is able to summon a force field defending the dark elixir storage by spending 1000 dark elixir. So that the lightning spell dropped by attackers will not effect the dark elixir storage but still will damage other nearby structures. The 1000 dark elixir spent on the force field will only be effective for one defense, in which have to be restocked for another defense.