History of One-Two Punch

One-Two Punch is a Shotgun weapon perk. Hitting a target with nearly every pellet (10 of 12 pellets of the spread) boosts the damage of your next melee attack for 3 seconds, by 150% of base melee damage on a shotgun.

It can roll on Precipial, a Void shotgun; its micro-rocket can also trigger the perk. In PvE it is paired with Vorpal Weapon in recommended rolls.