For 10 points, name this husband of Parvati, the destroyer of the Hindu Trimurti.
This deity decapitated one of the five heads of one of his counterparts, leaving that god with only four. This god is often depicted trampling the dwarf of ignorance, Apasmara, as the eternal dancer Nataraja. He often rides the bull Nandi, and his son Kartikeya lost a contest with his other son, who simply circumambulated this god. Halahala left over from the churning of the sea was drunk by this god to save the world, but it turned his throat blue. Worship of this god usually involves linga, or sacred stones, and he severed an elephant's head to replace his son Ganesha's. For 10 points, name this husband of Parvati, the destroyer of the Hindu Trimurti.
This deity decapitated one of the five heads of one of his counterparts, leaving that god with only four.
Shiva