Finishing Blow

You never leave your enemies standing within the last inches of their lives—You always finish them off. You gain the following benefits:

• Increase your Strength score by 1, to a maximum of 20.
• When you deal damage to a creature with a melee weapon attack and leave it with a number of hit points equal to or lower than your total level, you reduce that creature to 0 hit points instead. The first time this ability activates on each of your turns, you gain advantage on your next melee weapon attack made before the end of your next turn.