Many forge worlds build their own variants of the STC Shadowsword design, armed with different weapons. It is believed the Stormblade, mounting a massive plasma blastgun to replace the Shadowsword’s volcano cannon, was first constructed on Ryza, where the ancient arts of plasma weaponry construction are still practiced, and elevated to masterpieces of Imperial technology. As well as its main weapon the Stormblade is also armed with turret-mounted lascannon and sponson-mounted heavy bolters, making it a fearsome opponent.