Dark Blade (series) - Yugipedia - Yu-Gi-Oh! wiki

Dark Blade, known as Dark Sword (ダークソード Dāku Sōdo) in the OCG, is a series of DARK Warrior monsters used by Chazz Princeton in Yu-Gi-Oh! GX. They depict the history of "Dark Blade" itself and its Dragon Union Monsters, "Pitch-Dark Dragon" and "Kiryu".

Dark Blade (series) - Yugipedia - Yu-Gi-Oh! wiki

Yuya Sakaki (Duel Links), Yu-Gi-Oh! Wiki

Yu-Gi-Oh! - Duel 224 - Yugipedia - Yu-Gi-Oh! wiki

Dark Blade (series), Yu-Gi-Oh! Wiki

Dark Blade (character), Yu-Gi-Oh! Wiki

The Snake Hair - Yugipedia - Yu-Gi-Oh! wiki

Yu-Gi-Oh! - Dark Blade (SYE-015) - Starter Deck Yugi

Boot Sector Launch - Yugipedia - Yu-Gi-Oh! wiki

Bamboo Sword, Yu-Gi-Oh! Wiki