Aetherstone

The Aetherstone has 10 charges and regains 1d6 + 2 charges daily at dawn.

It has to be on your person to effect the changes.

3 charges - Lightning Bolt – 8d6 (dex 15 save)

4 Charges – Stoneskin – 1hr one willing creature you touch has Resistance to Bludgeoning, Piercing, and Slashing damage.

At 10th level power (character). These effects are changed or enhanced.

When attuned to by a character of 10th level or higher, the Aetherstone grants the following buffs:

Mountain's Grace: The bearer gains advantage on Strength and Dexterity saving throws.

Moonshae's Resilience: The bearer gains immunity to lightning, thunder, and cold damage at 10th level

Storm wrought Strikes: The bearer's melee attacks deal an additional 1d4 lightning damage. An additional 1d4 lightning damage is added for each level above 10.

Notes: Resistance: Lightning, Resistance: Thunder, Resistance: Cold, Immunity: Thunder, Immunity: Lightning, Immunity: Cold