tyrfing (fire emblem)
A sword from Fire Emblem: Genealogy of the Holy War. Tyrfing is the holy blade of Crusader Baldr, passed down to his full-blooded descendants. Within the game, its known wielders are Byron, who passes it down to his son Sigurd, and it later falls into Seliph's hands.
Boosts provided: +10 Skill, +10 Speed, +20 Resistance
Skills granted: Miracle
Usable only by characters with major Baldr blood.