Circle of Zul'fen

You create a stationary, magical circle with a 10-foot-radius that reinforces your will when within it. While within the circle, you can magically influence the emotions of creatures that are also within it. As an action, you can either choose to inflict pain or induce pleasure.

If you choose pain, the target must succeed a Charisma saving throw. On a failed save, the target begins experiencing extreme negative emotions, giving it disadvantage on Charisma and Wisdom checks until it leaves the circle or the spell ends. On a success, it automatically succeeds on any subsequent saving throws it would make as part of this spell. If you choose pleasure, the target begins experiencing extreme positive emotions, granting it advantage on Charisma and Wisdom checks until it leaves the circle or the spell ends. The magical circle lasts until you leave it or if it is dismissed by other magical means. 

In addition, whenever you complete a short or long rest while meditating within the circle, you gain temporary hit points equal to two rolls of your hit dice. During a short rest, you must be undisturbed while meditating for the entire rest or you do not gain any temporary hit points. During a long rest, you must spend at least one hour doing the same to receive any benefits.