dark elixir traps

While everyone is antininjating the arrival of the new dark troops, I am wondering how higher tier dark troops might be dealt with from a defensive standpoint. I thought dark elixir traps would be a great addition to the game. They would cost dark elixir to build and rearm. One idea I have been thinking about was soninjaing like a "hexbag". Within its radius all dark troop and hero abilities would be blocked. I have also thought about a "bear trap" considering the rumors of the yeti being released. In those rumors it says the yeti will be able to freeze defenses for a short duration. The "bear trap" would do the same to larger troops (giants, pekkas, golems and possibly the yeti), holding them in place for a short span, and in the case of the yeti, not allowing the freeze effect to take place for the time span it is held.... these are just some ideas I thought might even up the game from the defensive standpoint