The father of Hel, for 10 points, name this trickster god of Norse mythology.
The Voluspa states that this figure and his wife lie "under a grove of hot springs," and later refers to him as the brother of Byleist. This figure killed a man in the form of an otter, paying the weregild for that death with gold stolen from Andvari.  This killer of Fimafeng was punished with the death of his son Narfi, whose entrails were used to bind him to a tree.  This god writhes in agony as a snake drips venom on his face, which occurs whenever Sigyn has to empty the poison bowl. This god arms Hoder with a sharpened sprig of mistletoe, which is used to kill Balder. The father of Hel, for 10 points, name this trickster god of Norse mythology.
The Voluspa states that this figure and his wife lie "under a grove of hot springs," and later refers to him as the brother of Byleist.
Loki 