Shovel

The Shovel is a melee weapon which flings enemies away and bombs back toward their sources.

Trivia

 * The Shovel is a reference to Shovel Knight, and how he sends back certain projectiles with his shovel.
 * The flavor text may be a reference to Physics and Kinetic Energy - The faster something is moving, the higher kinetic energy it possesses, and the deadlier it becomes if it hits something. It also refers to how the Shovel can be used as a lever to lift up (and apply force to) anything above its surface, thus allowing it to dig.
 * It may be a weapon themed after the Graveyard biome as the in-game Graveyard is where common villagers are buried, and the shovel is presumably used to dig their graves.

Shovel