Demon Sword Ashgan

The legendary demon sword, said to grant the power to rule the world to its wielder and bring ruin to all others. Once unleashed from its scabbard, it is said to become uncontrollable even by witches. After being sealed and transformed into a sword by the origin witch Quenna, it is unable to move on its own and can mostly only speak. When the seal is broken, a sinister monster appears, releasing slashes that travel through the air like shockwaves. Its power is enough to cleave the castle of the Holy Knights in half, barrier and all.