Protection from lightning spells?
I had the idea recently, after having around 1000 dark Elixer taken away from me each defense because of lightning spells that there should be an item added that you are able to place above any structure within your village and will act as a shield against lightning spells. I would say the maximum level for this would be 5, because each level that it gains, it should be able to block another lightning spell (ex. Lvl 5 lightning shield will stop a maximum of 5 lightning spells before it needs to be re-armed).
If this were added, I would say let it become unlocked when the spell factory becomes available (Town Hall 6) and then allow upgrades to the shield itself whenever a new upgrade to the spell factory is available (I.E. The sane upgrade process as the Spell factory)
i think only 1 of these should be allowed throughout the whole game, so you can choose precisely which object you would like to protect (ex. My dark elixer)
If it is let's say level 2 and it is hit by 3 lightning spells, the 2nd lightning spell would break it (and the shield would make a shattering glass noise) and then the 3rd lightning spell would work on that building. The shield would be invisible to the attacker just like any other trap, unless it is activated (with the lightning spell)