Throwing Expert.

You have mastered thrown weapons and can make shots that others find impossible. You gain the following benefits:

• Attacking at long range doesn't impose disadvantage on your thrown weapon attack rolls.
• Your thrown weapon attacks ignore half cover. 
• Before you make an attack with a thrown weapon that you are proficient with, you can choose to take a -10 penalty to the attack roll. If the attack hits, it counts as a critical hit.