|This card's written lore in the manga was not shown, was too small to read, or was partially or completely obstructed; the lore listed here is a reconstruction based on how it was used, character descriptions of the card, and/or its OCG/TCG lore. It may not be accurate or complete.|
- Japanese: Ｎｏ．４７ ナイトメア・シャーク
- Romaji: Nanbāzu Yonjūnana Naitomea Shāku
- Translated: Numbers 47: Nightmare Shark
|ATK / DEF||
2000 / 0
Cannot be destroyed by battle except with "Number" monsters. When this card is Special Summoned: You can attach 1 Level 3 WATER monster from your hand to this card as an Xyz Material. Once per turn: You can detach 1 Xyz Material from this card, then target 1 WATER monster you control; this turn, that monster can attack your opponent directly, also other monsters cannot attack.
- Limited activations