From Introduction: Welcome to Nigrasaxa, a three part mini-saga that provides an extended introduction to Ars Magica Fourth Edition. Nigrasaxa works in tandem with the Promises, Promises: An Introduction to Ars Magica to teach new players the basics of the game. Although Nigrasaxa does not continue the story presented in Promises, Promises, it assumes the level of familiarity with Ars Magica that Promises, Promises provides.