Blue-Eyes White Dragon, the White Phantom Beast - Magnificent Maestros

When this card is added from the Deck to your hand, or a monster you control is destroyed by battle: You can reveal this card in your hand; Special Summon it. If this card is Special Summoned from the hand or Deck: You can destroy all monsters your opponent controls, also you can only attack directly with "Blue-Eyes" monsters for the rest of this turn. You can only use each of the preceding effects of "Blue-Eyes White Dragon, the White Phantom Beast" once per turn. When a card or effect is activated that targets this card on the field (Quick Effect): You can discard 1 card; negate that effect.