Crimson casket

You spend all five charges from your blood dynamo and remove (your level) d4 hit points from yourself. An armor of pure crimson energy forms on your body, increasing your armour class by 5 for 10 minutes. Also, you receive a 20ft increase in speed and your strength increases by 3. When you are wearing this armour, your unarmed strike deals (your level) d4 bludgeoning damage.