The lightsaber and crystal later came into the possession of a Dark Jedi murdered by General Grievous, Supreme Commander of the Droid Armies of the Confederacy of Independent Systems, either on Dica or Necropolis. Grievous stored the weapon aboard his personal starfighter, which was later recovered by Imperial forces and used as part of the N-K Project. The Bane's Heart lightsaber was wielded by N-K Necrosis during the Galactic Civil War until he was killed by a group of spacers who took the crystal from his dead body.
When tuned to be used in a lightsaber, it caused that lightsaber to release an electrical discharge and made it difficult for anyone other than the rightful owner to use the lightsaber.
Bane's Heart was the second unique lightsaber color crystal available to players in Star Wars Galaxies: An Empire Divided, the first being Sunrider's Destiny. It was added in the 2005 expansion pack Rage of the Wookiees. When used in a player's lightsaber, the weapon emits a purple-red hue, contrasting its stated color of "carmine".
- The Story of General Grievous: Lord of War on Hyperspace
- The Complete Star Wars Encyclopedia