Ballista (Natars)

Even as engineers, the Natars were very successful. They created machinery of war long before anyone else and have since then perfected it in every way. The Ballista, a huge crossbow-like weapon, fires its projectiles with such a force that no wall or shield can deflect them. When the engineers dismantle it to move it to the next battlefield, here is usually nothing but ruins left where the projectiles hit.