Do 4 damage to your opponent. During your opponent's next turn, he or she gets 1 fewer Action. (If this would mean your opponent has fewer than 1 Action, he or she still gets 1 Action.)

''WHAM!' A roar of rage echoed from the Gryffindors below - Marcus Flint had blocked Harry on purpose and Harry's broom span off course, Harry holding on for dear life.'