Godslayer

"I thought your thing was a sword?" "We've been hired to stop an inter-dimensional beast from feeding on those batteries and I'm going to stop it with a sword?" "It's just... swords were your thing and guns were mine, but... I guess we're both doing guns now. I just didn't know that."

- Star-Lord and Gamora

The Godslayer is a sword used by the Galaxy-Class Killer and Guardian of the Galaxy, Gamora. It includes a detachable knife that connects to the sword's hilt.

History
When Gamora pursued Peter Quill on Xandar, she was interrupted by Rocket Raccoon and Groot, and used the Retractable Blade to defend herself from the pair, amputating Groot's arms when he attempted to restrain her. While imprisoned in the Kyln, the Retractable Blade was confiscated by the Nova Corps, but Gamora eventually reclaimed it after escaping from the prison with Quill, Rocket, Groot, and Drax the Destroyer.

During the Battle of Xandar, Gamora dueled Nebula using the Retractable Blade, and emerged victorious.

Godslayer was used again in the Battle on Sovereign, where Gamora used it to kill the Abilisk, slicing it's throat after her firearm ran out of ammunition.

Capabilities
The Godslayer is capable of cutting through even the most durable of metals, and uses a unique energy core located in the hilt to lower the weight of the blade, making it easier for the wielder to handle. The detachable knife can be used as a melee or throwing weapon.