Vain Betrayer – (Judgment of the Light) – (JOTL-EN073) – (Common)

When an opponent’s Xyz Monster declares an attack: Activate this card by targeting the attacking monster. It cannot attack, also its effects are negated. While that monster is on the field, during each of your opponent’s End Phases: Send the top 3 cards of the opponent’s Deck to the Graveyard. When that monster leaves the field, destroy this card.