Artifact Moralltach [RA04-EN214] Quarter Century Secret Rare

You can Set this card from your hand to your Spell & Trap Zone as a Spell. During your opponent's turn, if this Set card in the Spell & Trap Zone is destroyed and sent to your GY: Special Summon it. If this card is Special Summoned during your opponent's turn: You can destroy 1 face-up card your opponent controls.