Battle requests!!!

I've been playing clans for a few months now and had a good idea. My friends and i talk smack to each other about who would beat who in an attack, so why not make a feature where you could go to your friend's list and choose a friend or search a specific player's name, send them a request for a battle, and if they accept then each player gets a turn to attack the other's village. Whoever gets the most percentage wins the battle. Not thought much about rewards for winning, maybe like placing a bet with money, elixir, and dark elixir before the battle. Any suggestions and who thinks this would be a good feature?

This could cause issues with sandboxing so I don't see this happening, sorry.

They could copy a war base from the opponent and practice on it until they get a three star, and also the betting would just be giving other people gold elixir from other accounts and whatnot.