The Labyrinth of Nightmare promotional cards are two Secret Rare cards, "Metal Reflect Slime" and "Torrential Tribute", that could be obtained by exchanging a coupon on the front flap of the box lid for the Labyrinth of Nightmare re-release in South Korea.




Card number English name Korean name Rarity Category
LON-KRPR1 "Metal Reflect Slime"메탈 리플렉트 슬라임 Secret Rare Continuous Trap Card
LON-KRPR2 "Torrential Tribute"격류장 Secret Rare Normal Trap Card

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