Its haft is carved from a blackened piece of ashwood, and the head is forged of the purest adamantine. It can cleave through 1d4 feet of stone with a single swing as an action, making a clean cut an inch-and-a-half wide in the stone. In addition, as an action, you can swing the axe into the ground, causing a massive earthquake in the immediate area. The earthquake affects everything within 100 feet of you, violently shaking everything. The actual effects of the quake are left to the Dungeon Master, but it is severe enough to knock doors off their hinges and crack foundations. Though not enough to level a building, it could definitely bring down sections of a cave or dungeon. It cannot cause another earthquake again until 24 hours have passed and its head has been polished with fresh, nutrient-rich soil.
Proficiency with a Battleaxe allows you to add your proficiency bonus to the attack roll for any attack you make with it.
This weapon has the following mastery property. To use this property, you must have a feature that lets you use it.
Topple. If you hit a creature with this weapon, you can force the creature to make a Constitution saving throw (DC 8 plus the ability modifier used to make the attack roll and your Proficiency Bonus). On a failed save, the creature has the Prone condition.
Notes: Normal Attunement, Versatile, Topple