Students of darker magic are closely watched by the senior scribes at Candlekeep in case they are tempted into wickedness. The stoic moon elf Vooshadi Moonriver is especially watchful of those adjutants studying Magic Jar, a necromancy spell that allows the caster to transfer their soul into a jar and then possess a nearby target, swapping the target's soul with their own into the same jar.
Magic Jar is a spell with many dangers, most especially the risk of death if the spell is disrupted and a high chance of spiritual corruption from taking control of another person's body. There is even a possibility of the caster or the target's soul becoming forever trapped in the jar.
Vooshadi did not react well when she learned a group of young scholars had devised a gin punch they dubbed "Magic Jar" because, in the words of a student, "It gets you out of your head." Their frivolous disdain for such a serious spell was alarming to the elder scribe. The students begged Vooshadi to at least try their creation, in the spirit of inquiry, and she reluctantly agreed. Vooshadi still won't refer to this drink by its official name, but she does enjoy a Magic Jar when she wants to let her hair down.