A "Death Scythe" is a powerful weapon in the anime and manga series Soul Eater. It is created when a Demon Weapon is fully transformed by consuming the souls of 99 evil humans and one witch. This transformation grants the weapon immense power and the ability to be wielded by a Meister. In the series, Death Scythes are associated with the character Death, who is the leader of the Death Academy. These weapons are crucial for fighting against evil beings and maintaining balance in the world, making them highly sought after by both Meisters and Demon Weapons.