When I designed my Lost Marches game, I limited the races and classes present as character options. As the game unfolds further options may be presented, and one of these is the Mystic. Within our game, the characters found a Crystal on the body of a Psionically powered foe, thereby unlocking a form of Psionics for the characters.
Unlocked by attuning to the Crystal: the Mystic’s Order of the Awakened. Further, all Talents could be learnt and the following Disciplines could be learnt:
- Psychic Assault
- Psychic Disruption
- Psychic Inquisition
- Psychic Phantoms
- Telepathic Contact
For details on Mystics, you can check here: