👉 A mutual weapon, also known as a doppelganger or double-edged weapon, is an object that can be used for both offensive and defensive purposes by two or more individuals simultaneously. This type of weapon typically features a design that allows it to be wielded by multiple people, such as a pair of scimitars or a two-handed crossbow, enabling coordinated attacks or self-defense. The mutual weapon emphasizes teamwork and synchronization among its users, enhancing their combat effectiveness while also providing a layer of protection through shared defense.