Valkyrie

Valkyrie is a Metalferd created by  that first appeared in episode 20 of the 1996 tokusatsu  series, Seven Star Fighting God Guyferd titled The Valkyrie's Trap.

Seven Star Fighting God Guyferd
Valkyrie was sent by Zodiac to gain the trust of a local artist by joining as her assistant. She must infiltrate the studio and keep it under constant surveillance in order to retrieve the Fallah artifact that the owner has. Her cover remains in tact until the Studio attracts the attention of Gou Kazama and Takeo Shiroishi, both of whom she recognizes as threats and must blow her cover to take down. She and Gou begin to fight in a parking garage, but she escapes and catches him off guard outside by taking the form of his friend Rei Kujou. She defeats him and retrieves the briefcase with the ancient sword in it, only to turn around and see Gou. Gou transforms into Guyferd, Valkyrie transforms back into herself, and the two have an intense Martial arts fight until Valkyrie is finished off with a Fire attack from Guyferd.

Abilities

 * Valkyrie can take the form of anyone she pleases