Arm-Shield

When you take the Attack action during your turn, you may replace Unarmed Strike with the following attack:

Shield Strike: Melee Weapon Attack: +3 to hit, reach 5 ft, Hit: 1d8 Bludgeoning damage + your Strength Modifier.

Shields require the Utilize action to Don or Doff. You gain the Armor Class benefit of a Shield only if you have training with it.