volumen_hydragyrum_(fate)
Kayneth El-Melloi Archibald's Mystic Code, which manipulates mercury as a means to attack or defend. Usually depicted as a silver/grayish blob, sometimes with a :3 expression.
It was later turned into the maid golem Trimmau (fate), servant and bodyguard to Reines El-Melloi Archisorte.
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Aliases: none