Great Weapon Master: Heavy Swing
Ability
Before you make a melee attack with a heavy weapon that you are proficient with, you can choose to take a penalty to the attack roll up to your proficiency bonus. If the attack hits, you add 2 times the proficiency bonus to the attack's damage modifier.
Example:
Creature has +2 PB. They can roll -2 to attack and +4 damage when using this feat.
Attached Items
Ability is not attached to any item.