Battle Between Clans

As the title of the game is Clash of Clans, I suggest the following :
1. There should be an additional feature or application for clan war. There should be a clash between to clans.(at least two clan )
2. There should be an existing battle field to choose from where a clan can invite other clan for a clan war.
3. The war can be 5x5 or more.
4. The troops for each clan should be specified.
5. The option for clan war can be on TH level or trophy level for the rank category. For example the highest trophy level as an option. (Like crossfire or other online gaming where there is ranking).
6. The members of the clan can choose what the army can bring. ( a hero, a dragon, a spell, etc...)
7. There must be an option for the number of battles to win the game.
8. The reward can be gem, gold, elixir or dark elixir depending on the score of the winning team.