Three Regalia

The Three Regalia exist in Fire Emblem: Shadow Dragon. They are the fire bow Parthia, the lance Gradivus, and the sword Mercurius. These weapons require a unit to have an A rank in the respective category in order to use them. When Marth reclaims Archanea Palace in Chapter 12, Nyna gives him Parthia. General Camus of Grust holds the Gradivus, and will drop it when he is defeated in battle in Chapter 20. Est gives Marth Mercurius during Chapter 18. There is also an A ranked axe, Hauteclere, but it is not considered one of the Three Regalia. If Marth fails to bring Gotoh the ingredients for Starlight, Gotoh tells Marth that he will need weapons such as Parthia in order to defeat Medeus.

The Regalia also have effects when used as items. Gradivus restores the user's HP, and Parthia raises the user's Resistance for a short time.