Hammer

"Hammer" is a short story by Edward M. Erdelac that was released in Star Wars Insider 147. It features a troubled Padawan discovering an ancient Sith relic on a remote planet during the tail end of the Clone Wars. He became corrupt when he put on the armor of Dark Jedi Warb Null. As a result, he killed his Master and ship's navigator, a Givin, then left the planet.