Great Weapon Duelist

You've grown so strong, and learned how to use your great weapon so proficiently, you can now wield it in one hand without suffering from disadvantage. You gain the following benefits:

• On your turn, when you score a critical hit with a melee weapon or reduce a creature to 0 hit points with one, you can make one melee weapon attack as a bonus action.
• You can now swing a great weapon in one hand, and use either a shield or a light weapon with the other hand, without disadvantage.