Martial arts initiate

You’ve developed the skills necessary to hold your own in unarmed combat. You gain the following benefits:

• You can roll a d4 in place of the normal damage of your unarmed strike like a monk. This die changes as you gain levels, as shown in the Martial Arts column of the Monk table.
• You can use Dexterity instead of Strength for the attack and damage rolls of your unarmed strikes.
• When you use the Attack action exclusively with unarmed strikes, you can make one unarmed strike as a bonus action.