For 10 points, name this husband of Frigg whose halls include Valhalla, the chief Norse god.
In one story, this figure disguises himself as the ferryman Harbard and refuses to ferry; in another, he engages with the giant Vafthrundr. This god owned an object which makes eight copies of itself every nine nights, the golden armband Draupnir. Advised by Hugin and Munin, two [*] ravens, this owner of the spear Gungnir and the eight-legged horse Sleipnir hung upside-down from Yggdrassil to gain understanding of runes, and drank from Mimir's well at the cost of one eye to gain wisdom. For 10 points, name this husband of Frigg whose halls include Valhalla, the chief Norse god.
In one story, this figure disguises himself as the ferryman Harbard and refuses to ferry; in another, he engages with the giant Vafthrundr.
{Odin} [or {Wotan}; accept similar forms]