Cannot be Normal Summoned Set. Must be Special Summoned with Contract with Exodia . Cannot be destroyed by battle or Spell Trap effects. Once per turn, during your Standby Phase: This card gains 500 ATK. Destroy this card unless all 5 of these cards are in your GY. Exodia the Forbidden One , Right Arm of the Forbidden One , Left Arm of the Forbidden One , Right Leg of the Forbidden One , and Left Leg of the Forbidden One .