Artifact Achilleshield (PRIO-EN015) - Primal Origin Unlimited

You can Set this card from your hand to your Spell & Trap Card Zone as a Spell Card. During your opponent's turn, when this Set card in the Spell & Trap Card Zone is destroyed and sent to your Graveyard: Special Summon it. If this card is Special Summoned during your opponent's turn: Your opponent cannot target "Artifact" monsters you control for attacks for the rest of this turn.