Card Appearances:Celtic Guardian

Duelist Kingdom

 * In the Japanese version of the second series anime, Solomon Muto's poster features this card alongside Hercules Beetle, foreshadowing Yami Yugi's duel with Weevil Underwood (while its Black Luster Soldier and Harpie's Pet Dragon are in the poster in the dub, foreshadowing Yami Yugi's duel with Mai Valentine).


 * During Yami Yugi's first duel against Maximillion Pegasus, this card made its first appearance. When Yugi tried to attack Illusionist Faceless Mage, the Eye of Illusion redirected the attack to Dark Magician which caused this card to be destroyed due to the attack backfiring. In this card's first appearance it was called "Elf Swordsman" but was corrected in later episodes.


 * During Yami Yugi's duel against Ghost Kaiba, it made its next appearance in where Yami Yugi has it destroy Kaiba's Grappler. It stayed on the field until the duel ended.


 * During Yami Yugi's duel against Panik, this card was summoned on Yami Yugi's opening turn then destroyed by Panik's Barox.


 * During Yami Yugi's and Joey Wheeler's tag-team duel against the Paradox Brothers, Yami Yugi summoned this card which was immediately attacked by the brothers' Wall Shadow. However, Joey activated Kunai with Chain, capturing Wall Shadow and raising this card's ATK to 1900 so that it could destroy Wall Shadow. It was later destroyed by the brothers' Dungeon Worm.


 * During Yami Yugi's second duel against Seto Kaiba on top of Pegasus' castle, this card was summoned after Yami weakened "Blue-Eyes Ultimate Dragon" enough, so that he could destroy it. It attacked and destroyed one of the Blue-Eyes Ultimate Dragon's diseased heads. When Yami Yugi attempted to attack another diseased head, Yugi Muto hampered the attack during the last moment which gave Kaiba the opportunity to have his dragon's only healthly head (revived via Monster Reborn) to destroy this card, winning Kaiba the duel.


 * During Yami Yugi's duel with Mai Valentine during Duelist Kingdom's finals, this card was briefly seen in Yami Yugi's hand.


 * During Yami Yugi's anime-only duel with Joey Wheeler during Duelist Kingdom's finals, this card was summoned on Yami Yugi's opening turn and was then destroyed by Joey's Giltia the D. Knight.


 * During Yami Yugi's/Yugi Muto's duel against Maximillion Pegasus in Duelist Kingdom's final duel, Yami Yugi summoned this card and attempted to attack Pegasus' Toon Mermaid with it. Unfortunately, only this card was destroyed since normal monsters could not destroy Toon monsters.

Post-Duelist Kingdom

 * During Yugi Muto's duel with Bandit Keith, Yugi summoned this card on his opening turn which destroyed Keith's face-down Cyber Jar. As per Cyber Jar's effect, it was destroyed.


 * During Yami Yugi's duel with Johnny Steps, this card destroyed Sonic Maid. It was later destroyed by Johnny's Musician King.


 * During Yami Yugi's duel with Arkana during Battle City, this card was briefly seen in Yami Yugi's hand and later discarded when Yugi used Card Destruction.


 * After Battle City, this monster was replaced with Obnoxious Celtic Guardian.

Yu-Gi-Oh! Capsule Monsters

 * Yugi Muto was holding the "Celtic Guardian" figure while teaching Téa Gardner how to play Capsule Monsters.
 * "Celtic Guardian" is the first Monster Yugi obtains in the Yu-Gi-Oh! Capsule Monsters arc.

Yu-Gi-Oh! GX

 * This card appears in the second version of GX Japanese opening song of 99%.

Naming
In the Spanish Anime, this card was known as "Guardia Celta".