Light Law Medium - 25th Anniversary Tin: Dueling Heroes Mega Pack (MP23)

At the start of your opponent's Battle Phase: You can target any number of Attack Position monsters your opponent controls; this turn, while this card is in your Monster Zone, those monsters must attack this card, if able. Once per turn, when an attack is declared involving this card and an opponent's Attack Position monster: You can negate that attack, and if you do, inflict damage to your opponent equal to half that opponent's monster's original ATK.