Go to war against another clan. Idk what that would look like, but there needs to be more clan-based activities in this game. All we really have right now is raids and nobody really cares about those.
đź‘€ you want a clan war feature? Just zero someone in a nearby clan. Im sure you will see how effective clan wars are for growth. đź‘Ť
I don’t think any rewards would really outweigh the negatives of participating in a “clan war”, the amount of zeroing and troops lost alone will set you back hundreds of millions of food