The Grimdisk

The Grimdisk is an inescapable magic prison that resembles a stone disk with magical engravings on it’s surface, with a black orb embedded on it’s center that designed to capture one person. However, it holds two people, Morgana le Fay and Veronica Gorloisen. This is possible because Morgana's spirit was inside of Veronica's body when they were trapped.

It is a prototype of The Grimhold.

Usage
As seen when Balthazar uses the Grimdisk to seal both Veronica and Morgana Le Fay (The Steampunk Adventures of Sorcerer's Apprentices) (Morgana’s essence was sealed inside Veronica’s body at that moment), when the Grimdisk is empty, it's surface was originally blank. However, after being used, the image of the prisoner inside will manifests on it's surface, reveals who was sealed inside. If 2 people sealed simultaneously inside the Grimdisk however, both of their faces separately manifests on sides of it’s orb. Prisoners inside the Grimdisk cannot able to escape from inside, which the only way to escape was by having a sorcerer/sorceress open them from outside. But to do so, a wizard or a witch who wanted to release the prisoner requires an immense power due to magic in the Grimdisk was immense. Being the first generations of the Grimhold however, it’s still have a setback where it’s sealing powers is unstable compared with it’s successors, as it would dissipates over time, which would take around centuries before dissipates completely. When this happens, the prisoner inside would easily escaped. When the Grimdisk used on the victims, their body dissolved into dust before sucked in. When they became released however, they manifests as a mass of disgusting organisms/substances that associated with the victim themselves before their body fully restored.