Greater Weapon Specialization

You have dedicated your life to the study of one weapon. Choose one weapon either melee or ranged you are proficient with, it becomes your specialized weapon. You gain the following benefits:

• Increase your Strength or Dexterity score by 1, to a maximum of 20.
• When wielding your specialized weapon, you can now add your proficiency bonus to both the attack and damage rolls of the weapon attack with it.
• Once per turn, when you make a weapon attack with the specialized weapon and have disadvantage on the attack roll, you can negate the disadvantage on that attack roll. This prevents the attack from being affected by advantage and disadvantage for the attack. Any other attacks perform as normal.
• You can gain Greater Weapon Specialization multiple times. Its effects do not stack. Each time you take the feat, it applies to a new type of weapon.