Before Cecilia Schariac, Reanna Brigantia held the title of the most powerful Valkyrie ever in Schicksal. Reanna is presumably an S-Rank, considering her former title. She wielded the Shadow Orchid before it was given to Cecilia, and then to Durandal after the former's death. She died in an attempt to stop Otto's Honkai nuke from destroying her friends as well as the entire New York.
Unlike Durandal or Cecilia, Reanna achieved power after getting her own flesh replaced with Soulium through Otto's experiment. This made her a complete cyborg, granting her many advantages like nearly ignore Honkai erosion and increased combat performance but at the risk of having her body controlled by Otto.
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