Double-bladed lightsaber

The double-bladed lightsaber or saberstaff was a lightsaber variant that featured a blade emitted from both ends.

History
The Dathomirian Zabrak Sith Lord Darth Maul wielded a red saberstaff he created himself, Savage Opress, Maul's brother, also wielded a red double-bladed lightsaber.

Count Dooku's personal assassin and apprentice Asajj Ventress had a pair of curved-hilt lightsabers that could be joined together at the hilt into a single weapon by a locking mechanism becoming a double-bladed lightsaber.

During the Clone Wars, Besalisk Jedi Master Pong Krell wielded two twin double-bladed lightsabers, one blue and one green-bladed, which could fold at the middle. The Jedi Temple Guard wielded a similar weapon, the yellow double-bladed lightsaber pike.

The Imperial Inquisitors, Dark Side Adepts tasked at identifying and hunting down Jedi following Order 66, fought using their unique version of the weapon. Their red double-bladed spinning lightsaber could also be used as a regular single-bladed lightsaber.

In 3 BBY, Maul wielded another double-bladed lightsaber.

Behind the scenes
The double-bladed lightsaber first appeared in the Star Wars canon in the 1999 film Star Wars: Episode I The Phantom Menace. It was originally conceived by writer Tom Veitch and artist Christian Gossett for the Star Wars Legends comic book series Star Wars: Tales of the Jedi. Gossett has said he thought of lightsabers as the personal "honor weapons" of the Jedi, and would be more customized to suit personal preference rather than standardized for all.

During the development of Star Wars: Episode VII The Force Awakens, screenwriter Michael Arndt became really interested in the motif of "fire and ice" and wanted to have one character wielding a double-bladed lightsaber, with one side red and the other blue.

Non-canon appearances

 * Disney Infinity 3.0
 * Star Wars: Galaxy of Heroes
 * Angry Birds Star Wars II
 * William Shakespeare's The Phantom of Menace: Star Wars Part the First
 * LEGO Star Wars: The Force Awakens
 * LEGO Star Wars: The Skywalker Saga
 * LEGO Star Wars: The Skywalker Saga