It would be a clan ally system that you need to do an app to the leader to be an ally, for example
Dear ConCon19:
This app is going to your clan for be our allies, for honor, for help in clan wars and be friendy.
(MAU) and [Ct] ally improvements:
*Helping each other with TCs and Items.
*Helping while Clan wars
*Eating Cookies(be friendly with each other)
*Have fun
So this is my application
Its an example right
And the maximum of allies that can you get is 3.
with my improvements it will get better