Quarterstaff of Certain Death

Explorer's Guide to Wildemount p. 270 (Third Party),

Type
Melee Weapon
Magic
Yes
Rarity
rare
Weight
4
Damage
1d6
Two-Handed Damage
1d8
Damage Type
bludgeoning
Properties
versatile

Description

When you damage a creature with an attack using this magic weapon, the target can't regain hit points until the start of your next turn.

Versatile: This weapon can be used with one or two hands. A damage value in parentheses appears with the property—the damage when the weapon is used with two hands to make a melee attack.

Proficiency: simple, quarterstaff Source: Explorer's Guide to Wildemount p. 270 (Third Party), Player's Handbook (2014) p. 149