Great Weapon Master

Requirement

To obtain this feat, you must have at least 1 of the following:

1. Strength 13+

Ability Score Increase

Increase your Strength score by 1, to a maximum of 20.

Heavy Weapon Mastery

When you successfully hit a creature with a Weapon that has the Heavy Property as part of the Attack Action on your turn, you can cause the weapon to deal extra damage to the target. The extra damage equals your proficiency bonus.

Hew

Immediately after you score a Critical Hit with a Melee Attack, or your Critical Hit reduce a creature to 0 Hit Points with one, you can make one Attack with the same Weapon as a Bonus Action.