Erevan's Empathetic Net

You create a magical field, which is a 30-ft sphere, centred on a point you can see within range. Choose two emotions out of the seven base emotions of Fear, Misery, Surprise, Anger, Disgust, Sadness and Joy. Every other emotion is derived from these base emotions. The field can detect the emotions of creatures within a 30-foot radius, as long as those emotions match the ones you specify when you cast the spell. For example, if you choose "Playful", it would count as "Joy", and therefore any creature in the field feeling "Melancholy" - a combination of "Sadness" and "Joy", would be detected by the field. The field pulses in and out, and with each beat, it emits a faint cry corresponding to the detected emotions. The cries become louder when the field pulses out and quieter when it pulses inward. The cry is only audible by creatures in the field who have a passive perception greater than your spell save DC.

While you maintain concentration on the spell, you can use your action to learn the number, location and overall creature type (such as Humanoid, Beast, Undead, etc.) of creatures feeling the specified emotions within the field's radius.

At Higher Levels. When you cast this spell using a spell slot of 2nd level or higher, the radius of the sphere increases by 15ft for each level above 1st. Additionally, you can detect one additional emotion for each slot level above 1st.