
1) Baldr 2) Mythological sword
Found on
https://www.crosswordclues.com/clue/mistilteinn

Mistilteinn (`Mistletoe`), also known as Misteltein or Mystletainn, is Hrómundr Gripsson`s sword in Hrómundar saga Gripssonar, a legendary saga from Iceland. Mistilteinn first belonged to Þráinn, who had been king in Valland before he retired in his burial mound with his wealth. The Danish king Óláfr and his men, among whom Hrómundr Grip......
Found on
http://en.wikipedia.org/wiki/Mistilteinn
No exact match found.