Badge of Rock

"You asked about the badge earlier I believe? It's a rock. I like rocks."

-Daniel "The Rock" Loamsworth

The Badge of Rock is a metallic badge with a piece of stone in it. The badge can only be worn by the wielder of the Hammer of the Earth. The badge has 3 charges which reset on a long rest. As a bonus action, you can expend one of the charges to create a giant patch of earth, which can be thrown at a target within 60 feet. Make a ranged attack roll with a +10 to hit. On a hit, the target and all hostile creatures within 15 feet of it take 9d12 bludgeoning damage.