Great game just need some changes

This is the only app Ive never got bored of and stopped playing. I have a few suggestions as Im starting to get irritated with some over powered cards.
1. Electro wiz should be 5 elixir
2. Tornado shouldnt do any damage its unstoppable when used with ice wiz/ice spirit/log
3. Goblin barrel should never open around the princess tower and surround it the goblin should pop out on one side only
4. Zap should kill equal lvl goblins i.e. Lvl 7 zap kills lvl 7 goblins
5. Furnace has too much health and so does inferno tower (buildings are very annoying and OP)
6. Night witch should be 5 elixir
7. 2v2 should just be a game mode stop taking it away!
8. There should be a double elixir game mode as well

KFitz9121995 about Clash Royale, v1.9.2