The god of mischief known for shaping events in Norse myths is Loki. Characterized by his cunning and unpredictable nature, Loki often instigates challenges for gods and mortals alike. His dual role as a trickster and a valuable ally complicates the themes of morality and responsibility in the narratives. Loki's actions lead to both calamity and unexpected outcomes, influencing significant events such as Ragnarök. His presence illustrates the complexity of chaos and order inherent in Norse mythology, highlighting the importance of balance within the divine realm.