Skírnir was given the sword Sumarbrander by his master so that the lord of Alfheim may see the giantess Gerd. He would pass the sword on to his demigod son Leif Erikson, who would lose it after landing in what would become Boston, Massachusetts.
- He was the second wielder of Sumarbrander after Frey before giving it to his son.
- His Greco-Roman equivalents Hermes/Mercury in terms of correspondence and pathfinder.
- His name Skírnir means Bright One.
- He was Frey's servant and best friend.