By casting this spell upon a specific spirit (or object or creature inhabited by one), the shaman can discern what type of spirit it is.
If cast on a spirit, however, it reveals any facts that the DM considers relevant – generally, information about spirit's nature and purpose.
The information revealed is game detail; the shaman can't codify, name, or classify the spirit. Rather, the shaman can tell that it's a “powerful spirit, courageous and noble” or “a great and extremely ancient animal spirit.” The shaman may also get hints about the spirit's intentions – hostile spirits will be recognized as “predatory,” “angry,” or “belligerent,” for example.
If cast a creature native to the Prime Plane, the spell can confirm that it is not a spirit; if cast on an extraplanar or undead being, the spell gives an uncertain or indeterminate response.
The material component is a small crystal, worth at least 10 sp, held in the right hand during casting. The crystal can be reused.
Notes: Restricted to shamans, uncommon.