Barricade Stone

The ancient inhabitants of Bloodsalt crafted these magic rocks to construct defenses quickly. In its stone form, a barricade stone appears to be a simple pebble with an unnaturally geometric shape. The size and shape of the stone's final form depends on the type of barricade stone. When you activate the barricade stone, you drop it on the ground, throw it up to 20 feet away, or sling it using a sling weapon. Upon landing, the stone instantly and permanently expands. The stone grows to its maximum size.