Earthboard

An earthboard is a magical granite plate used by the Earth Ashari of Terrah. It allows an attuned wielder to increase their mobility on the surface or burrow underground.

Appearance
An earthboard is a slab of granite about three inches thick, nine feet long, and two feet wide, with smooth, tapered ends. While a creature is attuned to it, its unique elemental power reduces the weight of the earthboadrd to 40 pounds.

Properties
While standing on the earthboard, a attuned creature, who completed the special training with the Earth Asari, gains these benefits:


 * Their speed increases to 60 feet as the board skims across solid ground (but not liquid surfaces).
 * If the rider ramps off a surface of solid earth, they can long jump up to 60 feet. When the rider ends this jump, they can choose to slam into the ground, creating a shockwave. Each creature standing on the ground within 20 feet of them must succeed on a DC 14 Strength saving throw or fall prone.
 * The rider has a burrowing speed of 20 feet that allows them to tunnel through earth or solid rock, leaving a 5-foot-diameter tunnel in their wake. As an action, they can increase this burrowing speed to 60 feet until the start of their next turn.
 * The earthboard always moves with the rider until they decide to dismount it (no action required).