Adventures in Stormreach
The magus is a player class in the Eberron campaign setting. The power of the magus has only been discovered in two places, the Arcane College in Arcanix, Aundair, and among the elven arcane practitioners. Thus, all magi must have received their training in Aerenal, Valenar, or Arcanix. The magus is as described in Ultimate Magic.