Card Trivia:Keldo
- This card has a retrained counterpart: "Keldo the Sacred Protector".
- The Spanish print of this card in Dark Revelation Volume 1 had a minor typo in its card text, as the term "add them" ("añádelas") appears without a diacritical mark ("añadelas").
- The Spanish translation of this card's effect in the Yu-Gi-Oh! Destiny Board Traveler videogame also has the aforementioned typo.
- This card's OCG/TCG artwork is taken from Yu-Gi-Oh! Duel 225 (Duelist Duel 166): "Kaiba Declares War!", specifically from the panel showing this monster being Summoned.