Episode 51: The Immortal Legion (2009 series), Fullmetal Alchemist Wiki

Ed’s crew faces a horde of ravenous mannequins, abominations powered by human souls. The twisted creatures aren’t the only unstoppable force on the battlefield – Pride, Sloth, and Envy are on the move. Beneath Central Command, the Mannequin Soldiers are released by the unnamed General. Ignoring the fact from a nearby scientist that their tests aren't completed, the General believes that them being completely immortal and obedient only to them is perfected enough. He prepares to order them to att

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