Wayward Haint

A haint that enters the space of an upright, empty bottle must succeed on a DC 16 Charisma saving throw or be drawn into the bottle, and a cork or stopper appears to close the bottle. The trapped haint can see and hear through the bottle out to 10 feet, and any creature in that range can hear the haint. The haint is released if the bottle breaks or another creature opens it.

The haint can move through other creatures and objects as if they were Difficult Terrain. It takes 5 (1d10) Force damage if it ends its turn inside a solid object.

Melee Attack Roll: +4, reach 5 ft. Hit: 10 (3d6) Psychic damage, and the target gains 1 Exhaustion level. This can't raise the target's Exhaustion level above 5, and all Exhaustion levels gained from this action end when the target finishes a Short or Long Rest, or if it receives a Lesser Restoration spell or similar magic.