Nightstalker's Kanabo

Alter: This studded greatclub once belonged to a hungering oni who excelled at subterfuge. You gain a +1 bonus to attack and damage rolls made with this magic weapon, which has the heavy property. When you hit a sleeping creature with this weapon, that creature takes an extra 2d8 psychic damage from the attack. In addition, when you roll a 20 on an attack roll with this weapon, the target of the attack must succeed on a DC 16 Constitution saving throw or magically fall asleep until the end of your next turn, the sleeper takes damage, or a creature uses an action to shake or slap the sleeper awake. While the target is asleep, it is unconscious. Undead and creatures immune to charmed automatically succeed on the saving throw.

The weapon has 3 charges and regains 1d3 charges daily at dusk. While holding the weapon, you can expend 1 charge as a bonus action to cast either invisibility (targeting only yourself) or sleep (3rd level version) from it.

Attunement: Yes
Rarity: Very Rare
Type: Greatclub
Cost: 11700gp

Griffons Saddlebag, Vol 1