"No.47 Nightmare Shark" is the "card" held by Reginald Kastle in the comic version of zexal. "No.47 Nightmare Shark" first appeared in the 20th sentence of Volume 4 of the singles, but before its effect was shown in comics, it was included as a bonus card for Volume 4, and its effect was also spoiled. In the 29th sentence of Volume 5, "No.47 nightmare shark" is not the first time to show its effect in comics.

In the sentence 19, Reginald castel (ルナ), who used to be Dr. Fica's female assistant, duel with Reginald castel to test Fica's strength. After Ling Ya won, Guan Na gave Ling Ya the "No.47 Nightmare Shark" and asked him to help him collect the "number plate" to obliterate the destructive power of the "number plate".

In the 20th sentence, Lingya dueled with the owner of a canteen, won the competition with "No.47 nightmare shark" and regained "No.63 rice spoon warrior". Unfortunately, the duel is only one page, so readers can't know the duel process, and "No.47 nightmare shark" only appears as a shadow.

In the 29th sentence, the duel between the spiritual world and the shadow. Lingya uses the effect of "Dragon Shark" to summon "No.47 Nightmare Shark" specially, and uses the effect of "No.47 Nightmare Shark" to let "Dragon Shark" attack directly! Lingya won.

The 30th sentence, Reginald Kastle vs Kite Tenjo. Lingya used the effect of "Dragon Shark" to summon "No.47 Nightmare Shark" and used its effect to make "Dragon Shark" directly attack Kuaidou. After "No.47 nightmare shark" was destroyed by "Galaxy Eye Dragon".

Words 38~39, Reginald Kastle VS Bayun Xingshi. Lingya first summoned the Dragon Shark and the No.47 Nightmare Shark, but was destroyed by Yakumo's No.23 Ghost Knight Lancelot in the next round.