For trivia pertaining to this monster's Number, see Forum:"Numbers" Xyz Monster Trivia. Any contributions regarding this type of trivia should be placed there, instead of this page.
- This card is named after the archangel Sandalphon, who is an extremely tall angel.
- The "Fiendish Skyprison" (魔天牢, Matenrō) part of this card's Japanese name is a pun on "Skyscraper" (摩天楼, Matenrō).
- The maximum ATK this card can have from its effect is 17000 ATK, by having two 60-card Decks completely full of monsters and 29 Extra Deck monsters (both players' full Extra Decks excluding this card) in the Graveyard.