In Norse mythology, the god who embodies mischief and chaos is Loki. Known for his cunning and trickster nature, Loki often causes trouble for gods and mortals alike. His actions lead to significant events, including the death of Balder, and contribute to the eventual apocalyptic battle of Ragnarok. Loki’s character challenges the notions of order and morality in mythology, showcasing the duality of his nature.