You call forth a spirit that is proficient in a skill from Arcana, Animal Handling, History, Investigation, Medicine, Nature, Perception, Religion, or Survival. The spirit is ethereal and ephemeral and cannot interact with physical objects, but can provide guidance on matters relating to the skill selected when you summon it.
You can treat any check you make in the skill as if you have proficiency with it so long as the spirit can communicate with you. Alternatively, if the ability check is an Intelligence or Wisdom check you can have the spirit make the check, and it has a +5 for the skill was summoned for.
The spirit will follow you and cannot stray more than 5 feet from you. You can choose to release it early, dismissing it back from whence it came.