The First Blade dagger from the Supernatural series is a legendary weapon in the series universe, used by the first demon, Cain, and later by his heir, Dean Winchester. The dagger's blade is made of an alloy of iron and blood from a hell horse, making it capable of killing powerful beings such as angels and demons.
In addition to being a deadly weapon, the First Blade dagger is also tied to a prophecy that the wielder of the dagger will be able to defeat the mightiest of demons, the Prince of Hell. In the series, the First Blade dagger is used as a means for Dean Winchester to fight against the hunters' most powerful enemies, making him a formidable warrior. Whether you are a fan of the Supernatural series or a collector of legendary weapons, the First Blade dagger is a unique and impressive piece to add to your collection.