The Githzerai are a race of planar travelers that live on the Plane of Limbo. As such, they can be quite unpredictable.

They're very serious minded; very few things can evoke an emotional reaction from them. Githyanki, Mind Flayers and attempting to enslave them or one of their people are three things that can.

Githzerai have a religion based on worship of their ancient wizard-king and do not have any kind of priests with abilities beyond Clerical Investment.

They have the ability to shift themselves from one plane of existence to another, but this ability is often lost by those individuals that spend too long away from their wizard-king.