Au Ra’s Spiked Shield

Au_Rai's Spike Shield

Armour (shield), uncommon

As a bonus action, you can sheathe a bladed weapon into the back of the shield where it seems to disappear up to the hilt. At any time while there is a weapon sheathed inside the shield and a creature within 5ft. of you misses you with an attack roll, you can make a melee weapon attack as a Reaction as if you were holding the sheathed weapon in the hand you are holding the shield in. If you roll a natural 1 on this attack roll, the bladed weapon shatters and deals 1d10 piercing damage to you and every creature within 10ft. of you.

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.