Bane's Heart

Bane's Heart is a lightsaber crystal for use in the lightsaber of a Jedi. The crystal itself is electricity based, offering around 5% of the lightsabers maximum damage. To obtain the crystal, players must kill N-K "Necrosis"; the crystal is a random loot drop from the boss. It is also now available as a drop from the Rare Loot System.

Description
This crystal was orginally a gift from Darth Bane to his apprentice, Darth Zannah. The crystal eventually came into the posession of General Grevious, and was used in the N-K "Necrosis" project.