"Noble Arms", known as "Holy Sword" (聖（せい）剣（けん） Seiken) in Japanese, is an archetype of Equip Spell Cards introduced in Return of the Duelist. It is based around the tales of the Knights of the Round Table and supports the "Noble Knight" archetype. The first support for the archetype was introduced in Abyss Rising with the release of "Ignoble Knight of Black Laundsallyn". "Gwenhwyfar, Queen of Noble Arms", the first "Noble Arms" Monster Card, was introduced in Legacy of the Valiant.