Great Weapon Master (2024 Revised)

New Old Great Weapon Master 

Scales with proficiency instead of being a flat -5/+10.
Less punishing early when you don't have magic items with to-hit bonuses to compensate for the attack roll penalty, but deal less damage as a trade-off.
Wording has been adjusted so that this feat is compatible with heavy ranged weapons

General Feat (Prerequisite: Level 4+, Strength/Dexterity 13+)

You gain the following benefits.

Ability Score Increase. Increase your Strength or Dexterity score by 1, to a maximum of 20.

Heavy Weapon Mastery. Before you make an attack with a weapon that has the Heavy property that you are proficient with, you can choose to forgo your proficiency bonus on the attack roll to cause the weapon to deal extra damage to the target. The amount of extra damage equals double your Proficiency Bonus.

Hew. Immediately after you score a Critical Hit with a weapon, or reduce a creature to 0 Hit Points with one, you can make one attack with the same weapon as a Bonus Action.