Martial Artist

You've learned the basics of martial arts and are able to incorporate them into the way you fight. When you take this feat, you gain the following benefits:

• Increase your Strength or Constitution score by 1, to a maximum 20. 
• The damage die for your unarmed strikes is set to the monk damage die in the monk table, up to a d8. This follows your total level.
• When take the attack action to attack with your unarmed strikes, you can make an additional unarmed strike immediately as a bonus action.

All of these benefits apply even when wearing armor.