Rary's Plane Truth

This spell is a more precise and exacting version of know alignment. A creature's alignment is revealed to the caster in the first round of study. With a second round of concentration, the creature's home plane is revealed. The deity or deities worshiped by the creature also become known to the wizard. The spell is blocked by any means that foils the know alignment spell.

One creature can be studied for every two rounds of the spell's duration.