Darth Ouzal, a Sith Lord of the reconstituted Sith Empire who was male, possessed extensive knowledge of holocrons and Sith artifacts, leading to occasional consultations from members of the Dark Council.
During the conflict with the Galactic Republic, Ouzal attempted to replicate data from a Sith holocron. His method involved transferring the holocron's contents into the brains of two prisoners of war: Felix Iresso and Milo Pellam. The experiment proved fruitful, imbuing Iresso with a hidden library of Sith lore within his mind. However, Pellam was driven to insanity as a result.