Special (1 Charge).

Using an action, you throw this item to a point within 60 feet. The sphere explodes on impact and affects a 10-foot-radius hemisphere centered on that point. Each affected creature must make a DC 13 Dexterity saving throw, taking 18 ([roll]4d8[/roll]) force damage on a failed save, or half as much damage on a successful one. The ground is torn asunder and liquified, turning the affected area into difficult terrain.

Recharge.

You must boil this item for 8 hours to
recharge it. The maximum number of charges is 1.