Apply these effects in sequence. • Reduce the Levels of all monsters your opponent controls by 2. • Increase the Levels of all monsters you control by 2. During your Main Phase, if this card is in your GY because it was sent there this turn: You can target 1 face-up card you control; destroy it, and if you do, add this card to your hand. You can only use this effect of "Mischief of the Wolves" once per turn.