This glasslike orb is about five inches in diameter. Storms can be seen swirling within.

While holding the stone, you can cast the gust of wind and lightning bolt (save DC 13) spells, requiring no material components or spell slots. Casting lightning bolt in this way more than once per long rest requires a spell slot. 

Shattering the stone by throwing it on the ground creates a thunderstorm 1 mile in diameter, centered on the point of impact.

Notes: creature without an innate spellcasting ability, Damage, Combat, Headwear