Dark Spell Castle

-Thinking that the game is long over due for a new feature that would benefit mostly everyone, I thought of this: "Dark Spell Castle"

-Unlocked at TH7 (along side the dark elixir drill).

-"Dark Spell Castle"-A new castle that contains mystical troop spells (fast spirited creatures like a raven, hydra, fairy, banshee, or nymph) that can deliver damage to an area when triggered at home or dropped while attacking (similar to the Clan Castle function).

-Dark Spell Castle Levels: similar to a spell factory, or barracks, each time you level up the Spell Castle, it unlocks a new Dark Spell Troop.

-Dark Spell TROOP Levels: Level up your unlocked Spell Troops in the Lab just like you would any other troop or spell. Same as with spells, the power and time duration of the spell troop would increase with each upgrade.

The possibilities are limitless as to the specific functioning of each individual dark spell troop. The current use of major modes of function (lightening, healing, rage, freeze) could be expanded to include other good ideas for dark spells (magma splash, rocky Avalanche, or confusion (making smart troops dumb).

After I read most of the ideas already considered off limits I see some isolated features of this idea that may violate the terms. However, I think that the idea as a whole is original enough be considered worth discussing. Let me know what you think! Clash on!!!