The Double-Edged Sword was a double-bladed weapon used by Thanos.
Thanos from an alternate 2014 wielded his Double-Edged Sword when he time traveled to 2023 and engaged the Avengers. With his sword, Thanos was able to have an upper hand against the team of Thor, Iron Man, and Captain America, especially when he used the sword to break Captain America's Shield.
During the Battle of Earth, the sword was damaged by Scarlet Witch, but it was still usable enough for Thanos to throw it at Luis' Van before Captain Marvel could enter the Quantum Tunnel with the Nano Gauntlet, destroying the sword in process.
This massive Double-Edged Sword was Thanos' primary weapon during his days as a warlord. Other than a melee weapon, it could also be used as a throwing weapon that returned back to Thanos like a boomerang. The sword was made from an extremely sturdy material, being durable enough to withstand strikes from both Stormbreaker and Mjølnir. It was able to break Captain America's Shield after repeatedly striking it. Since Vibranium is Earth's strongest metal, the blades of the Double-Edged Sword could be made out of a stronger alien metal.
Behind the Scenes
- Comic book writer Jim Starlin, who created Thanos, mentioned in an interview with Digital Spy that the Double-Edged Sword was inspired by the ThanosCopter, a helicopter piloted by Thanos in Larry Lieber's Spidey Super Stories. Though he admits he liked Avengers: Endgame more than Avengers: Infinity War, however, Starlin noted that the Double-Edged Sword was the film's only aspect he really disliked.