For 10 points, name this wielder of MjÃ¶lnir who was the Norse god of thunder.
This god used a staff to prevent a rising chair from crushing him against the roof of a dwelling and then used the chair to crush Gjalp and Greip, the daughters of Geirrod. In another story, this god lost a wrestling match against the old woman Elli and failed to drain a drinking horn connected to the sea. His sons, Modi and Magni, were not the children of his golden-haired wife Sif. This god was deceived by Utgard-Loki into attempting to lift a cat that is actually his mortal enemy, the Midgard Serpent. For 10 points, name this wielder of MjÃ¶lnir who was the Norse god of thunder.
This god used a staff to prevent a rising chair from crushing him against the roof of a dwelling and then used the chair to crush Gjalp and Greip, the daughters of Geirrod.
Thor [or Donar; or Thunar]