The crafty wizard Oller, 
The crafty wizard Oller, also known as Uller or Ollerus, briefly replaced this god in the pantheon before this god returned and chased Oller away to Sweden. Once source claims that this god has two wives, Gritta and Grydat. Tools used by this god, who knows eighteen magical songs, include the tusk Rati. This god sometimes dwells in the hall of Valaskjalf, where he sits on his chair Hlidskjalf. This god either turned into a snake or into the farmhand Bolverk in order to get close to the giantess Gunnolth. This lives at the abode of Gladsheim, where he may have slept with Rind to produce his son Vali, and he obtained Odraerir, a beverage made from the blood of the wise giant Kvasir that is said to be the beverage of poets.  For ten points, name this father of Vidar and husband of Frigg, who drank from the well of Mimir to become wise, the one-eyed leader of the Norse gods.
The crafty wizard Oller, also known as Uller or Ollerus, briefly replaced this god in the pantheon before this god returned and chased Oller away to Sweden.
{Odin} [accept: {Othin}, {Othinus}, {Ouvin}, {Votan}, {Wotan}, {Wodin}, {Wodinaz}, {Ygg}]