Shatterspike

D&D item: Shatterspike. Source: Tales from the Yawning Portal. type Melee Weapon, Uncommon rarity, Requires attunement, properties Versatile, damage 1d8 slas... You have a +1 bonus to attack and damage rolls made with this magic weapon. If it hits an object, the hit is automatically a critical hit, and it can deal bludgeoning or slashing damage to the object (your choice). Further, damage from nonmagical sources can't harm the weapon. Requires attunement Melee Weapon Uncommon Versatile

Source: Tales from the Yawning Portal, p. 229 - Licenses and attribution