Odd-Eyes Pendulum Dragon of the Four Heavenly Dragons

This Pendulum Summoned card gains these effects. ● Gains ATK equal to the difference between the Pendulum Scales of the 2 cards in your Pendulum Zones x 300. ● Any battle damage your opponent takes from battles involving this card is doubled. If this card in the Monster Zone is destroyed by battle or card effect: You can add this card to your hand, then if it was destroyed by your opponent, you can Special Summon it. You can only use this effect of "Odd-Eyes Pendulum Dragon of the Four Heavenly Dragons" once per turn.