Crude metal spikes adorn this magic Shield. It has the following properties that you can use while holding it.
When you take the Attack action, you can make one of the attack rolls using the Shield against a target within 5 feet of yourself. Apply your Proficiency and Strength modifier to the attack roll. On a hit, the Shield deals Piercing damage equal to 2d6 plus your Strength modifier.
As a Magic action, you can cause spikes to erupt from the Shield in a 30-foot Cone [Area of Effect]. Each creature in the Cone [Area of Effect] makes a DC 13 Dexterity saving throw, taking 3d6 Piercing damage on a failed save or half as much damage on a successful one. Once this property is used, it can't be used again until the next dawn.