Like the other 'Royal Guard' weapons created using Ancient Sheikah technology, its low durability made it an impractical weapon despite its high attack power. A Moblin in the Guards' Chamber wield one as well and will respawn with one each Blood Moon. A Royal Guard's Claymore can be found in one of the cells in Hyrule Castle (Breath of the Wild) Lockup. It is a two-handed sword with an attack rating of 72, though this may be increased by certain weapon bonuses. The Royal Guard's Claymore is an item from The Legend of Zelda: Breath of the Wild.
It was designed to oppose the Calamity, but its low durability made it impractical in battle.' - Hyrule Compendium Enemy Weapon Damaging Enemies Cutting Grass & Trees Trade to Parcy for Gemstones Breaking: - Barrels -Metal & Wooden Crates - Ore Deposits - Pots ' The Sheikah used the very essence of ancient technology to forge this greatsword.