Instead of the recent friendly challenge upcoming update there should be friendly wars.If u intrduce friendly battle there will be some sandboxing in game. And therefore u'll be forced to nerf the wars or the friendly battles.I think its the time for friendly battles among the clan like if u have 20 members ready to war divide them in equal parts and have a blitz war with no preparation day just 2 hrs battle.And this will be only to practice war attacks.I think 5 vs 5 would also be awesome.