The Bureau's Strongest

As the situation grew dire, the Vessels made a fateful decision.

They knew they had to unleash the power of the Arcana they had borrowed from the Dark Council, even if it meant sacrificing themselves in the process. This particular Arcana was revered as the pinnacle of magical artifacts among Arcanists, surpassing even the Sovereign Rank Artifacts in potency and mystique.

The Arcana they currently have, known as the Eternal Eclipse Prism, shimmered with an otherworldly radiance as it emerged from within the ranks of the Vessels.

This artifact, said to hold the essence of a cosmic event that transcended time and space, possessed the ability to bend reality itself to the wielder's will.