Card Trivia:CXyz N.As.Ch. Knight
- This is one of the cover cards of Duelist Pack: Duelists of the Abyss.
- This monster's Japanese name, "Naphil Asylum Chaos Knight", is a backronym of "Nasch", an alternate spelling of Nash's name.
- "Naphil" is Hebrew for "fallen one", which is likely a reference to how Nash originally became Reginald "Shark" Kastle by being cast out of the Barian World, or how Shark opposed Yuma Tsukumo and his allies once he learned of his identity as the leader of the Seven Barian Emperors.
- "Asylum" is taken from the effect name of "Number 101: Silent Honor ARK" in the Japanese version of the Yu-Gi-Oh! ZEXAL anime: "Eternal Soul Asylum".
- This monster wears the same crown Nash has, and the spear also has the Barian Emblem on its tip (which originated as Nash's pendant in his past life).
- This monster is the "CXyz" evolution of "N.As.H. Knight".
- This monster is the pilot of "N.As.H. Knight", as shown in the latter's concept art.
- Curiously, this monster's effects are the opposite of those of "N.As.H. Knight".
- This monster cannot be destroyed by card effects, while "N.As.H. Knight" cannot be destroyed by battle while a "Number" monster is on the field.
- This monster can Xyz Summon a "Number 10X" monster by using itself as the Xyz Material, while "N.As.H. Knight" can attach a "Number 10X" monster to itself as material.
- Visually, this monster is a combination of "Number C101: Silent Honor DARK" and "Number 32: Shark Drake".
- This monster's pose is based on that of "Silent Honor DARK" in the commercial of Legacy of the Valiant.
- Both this monster and "Silent Honor DARK" are the pilots of their base forms.
- This monster's original ATK and DEF (2000/3000) are the opposite of those of "Number C73: Abyss Supra Splash".
- Both are also Rank 6 WATER "C" Xyz Monsters that cannot be destroyed by card effects.
- This is the first OCG/TCG-original "CXyz" monster.
- It is also the only "CXyz" monster with a base form to not gain an additional effect from it, as well as the first "CXyz" monster that Special Summons itself on top of its base form.