This idea is basically so you can challenge your friends to a battle. So basically, it will be when you go to your friends on clash, when you press on them you can request challenge. Then if you both accept you would have to attack them during 3 hours and whoever does the best wins and you can maybe get XP from it instead of loot or gems. Now you wander, what if they both got the same percentage and stars? Basically it would be a draw and you get half the XP you should get.
