The Edge of Duality is an item from The Legend of Zelda: Breath of the Wild. It is a Sheikah sword with a base attack rating of 50 though this may be increased by certain weapon bonuses. The Edge of Duality is a two-handed double-edged sword which was crafted using Ancient Sheikah technology. It was originally intended for Knights of Hyrule unfamiliar with single-edged blades traditionally used by the Sheikah tribe. It features a Sheikah Eye symbol on its crossguard. Unlike the Royal Guard weapons created using Sheikah technology to combat Calamity Ganon, it does not suffer from low durability.