Great Weapon Expert

You've learned to fully control the weight and size of your weapon. 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 two melee weapon attacks as a bonus action.,
• Before you make a melee attack with a heavy weapon that you are proficient with, you can choose to take a -5 penalty to the attack roll. If the attack hits, you add +10 to the attack's damage.
• Attacks made using weapons with the Heavy Property, can be made with Dexterity in place of Strength. Gaining the Finesse property