The Psypher known as the Belderiver takes the form of a black blade tipped with a red (Cauldron-made) Psypher crystal. The lower half of the blade appears to be a normal sword, albeit a grand one. Forged by the dwarf Psyphersmith Brom, a deal was struck with Odette upon its forging: Whoever wielded the blade would be able to control the power of darkness, but their souls would belong to Odette after a set amount of time or upon their death.