Joker's Shuffle (recharge 6)

The jester forces one Medium or Small humanoid within 60 feet to make a DC 17 Charisma saving throw. If the saving throw fails, the jester and the target exchange locations via teleportation and an illusion causes them to swap appearance: the jester looks and sounds like the target, and the target looks and sounds like the jester. The illusion lasts for 1 hour unless it is dismissed earlier by the jester as a bonus action, or dispelled (DC 17).

Killing Joke (recharge 6)

The jester performs an ancient, nihilistic joke of necromantic power. This joke has no effect on undead or constructs. All other creatures within 60 feet of the jester must make a DC 17 Wisdom saving throw. Those that fail fall prone in a fit of deadly laughter. The laughter lasts 1d4 rounds, during which time the victim is incapacitated and unable to stand up from prone. At the end of its turn each round, an incapacitated victim must make a successful DC 17 Constitution saving throw or be reduced to 0 hit points. The laughter can be ended early by rendering the victim unconscious or with greater restoration or comparable magic.