A group of 2 to 5 players using one huge village (number of construction variable with number of players in a group) will fight against other same group size of players, but the attack still the standard attack and only one attack per player. Win who takes more stars (one star for 50%, another one star for each CV destroyed and 7 stars if everything was destroyed).
There's no need for preparation day since you can prepare anytime before you start to search for opponent.
It would be fun if you can bet gold/elixir/oil for the victory.
Siege (2 - 5 players war)
