An artificial mass shadow was created by Galactic Republic Lieutenant Bao-Dur on the planet Malachor V during the Mandalorian Wars under the Jedi General Meetra Surik. Bao-Dur's Mass Shadow Generator was so powerful it trapped and crushed any ships that ventured too close to the planet's surface, killing millions of Mandalorians and Republic soldiers alike. Only an extremely powerful Force user such as Darth Nihilus would be able to pull a ship from the gravity well and escape the planet. The Mass Shadow Generator was used by the Jedi Exile a second time to destroy Malachor V after defeating Darth Traya.