Punch Knife +2

Dungeon Master's Guide (2014) p. 213,

Type
Melee Weapon
Magic
Yes
Rarity
rare
Weight
3
Damage
1d4
Damage Type
piercing

Description

Sap (Mastery): If you hit a creature with this weapon, that creature has Disadvantage on its next attack roll before the start of your next turn.

You have a +2 bonus to attack and damage rolls made with this magic weapon.

Proficiency: simple, punch knife Source: Dungeon Master's Guide (2014) p. 213, Ben Huffman - Pugilist (Third Party)

Modifiers

weapon attacks +2

weapon damage +2