Sling Mastery

You have developed unrivaled accuracy and speed with the sling. For this you gain the following:

• Damage dice is now a d6 instead of a d4 for ranged attacks made with a sling
• You now critical strike on an attack roll 19 and 20 when making a ranged attack with a sling
• If you do not move on your turn you may use your bonus action to make an additional ranged attack with the sling