, Pay 2 Force Choose an arena and roll a die. If you roll a 1, discard one of your units from the chosen arena. If you roll a 2 or 3, discard one of your units and one of your opponent's units in the chosen arena. If you roll a 4 or 5, discard one of your opponent' s units from the chosen arena. If you roll a 6, discard all of your opponent's units from the chosen arena. Play only if you and your opponent each have a unit in the chosen arena and only when Centerpoint Station would attack.