Idea of some new buildings And other stuffs

Hello, guys. So, I find out that most town hall 7 people uses lightning spells to get dark elixir. While I get them by normal raid. Anyway, As I have Lv2 Dark Storage, some people uses lightning on my storage too. I kinda feel how higher people feel when a town hall 7 zaps their DE storage. So, I think there should be a new building called "Lightnin Rod " or something. Which will have a range. And any lightning spell in that area will be useless. That will stop people from zapping hard earned Dark Elixir. Also, May save good build town hall 7 from all Dragon attack. The other idea is kinda stupid but I think a new hero should be unlocked when someone has Town Hall 8 and Got all 150 stars on goblin maps. It could be Goblin King or something. I know a goblin hero is kinda funny. But there should be a new hero when someone gets 150 stars. And I've one more idea. It would be awesome if we had something called a "Fusion Barack" or something. Where we can fuse normal elixir troops with Dark Elixir. They will get more power and new powers and some new weakness too. Like "Dark Barbarian lv1" (Just an example) HP100 attack 20 Speed 20. Cost 80 Elixir+5 Dark Elixir. They may target heroes first , double damage or something else. The more powerful troop the more Dark Elixir. Like "Shadow Pekka lv1" 40000 Elixir + 400 Dark Elixir. It would be awesome. Now guys, tell me how are my ideas?