Odin is a recurring summon character in the Final Fantasy series, known for his powerful and swift attack, Zantetsuken, which can instantly defeat enemies. Often depicted as a knight riding the mighty horse Sleipnir, Odin embodies the classic image of Norse mythology's god of war and death. In various games, he serves as a powerful ally that players can summon in battle, helping to turn the tide with his devastating attacks. Odin's presence adds a layer of mythical grandeur and strategic depth to the series.