| Set: | 2025 Mega-Pack |
| Card type: | Normal Trap |
| Rarity: | Ultra Rare |
Target 1 face-up Special Summoned monster on the field; change it to face-down Defense Position. If you control a Level 5 or higher Illusion monster, while this card is in your GY: You can Set this card, but banish it when it leaves the field. You can only use 1 “Sinful Spoils of Slumber – Morrian” effect per turn, and only once that turn.
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![Mikazukinoyaiba, the Moon Fang Dragon [MP25-EN346] Common](https://www.miniatureinlove.com/wp-content/uploads/2026/06/1781070738/mikazukinoyaiba-the-moon-fang-dragon-mp25-en346-common.webp)
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