Thumper and pummeler cannons are the most powerful mobile artillery possessed by the Trollbloods. Originally naval cannons donated to the kriels, thumpers fire devastating cannonballs that punch through walls of enemy fortifications and flatten their warbeasts. The trollkin-designed pummeler instead fires devastating chain shot used for breaking troop formations from a distance, ideal for thinning enemy lines and mowing down anything in its firing arc.