Tyr is the Norse god of war, law, justice, and honor, a courageous and single-handed warrior famous for sacrificing his hand to the monstrous wolf Fenrir to protect the other gods, symbolizing ultimate bravery, fairness, and the binding of chaos for the greater good, making him a revered figure for warriors and those seeking fair judgment.

Key Characteristics:
Appearance: A strong, bearded warrior, most notably missing his right hand, which Fenrir bit off.
Domains: War (especially single combat), law, oaths, justice, honor, and heroic deeds.
Personality: Brave, trustworthy, honorable, and willing to make great sacrifices for community, as shown in the binding of Fenrir.
Family: Son of Odin (or Hymir) and father of many prominent gods like Thor and Baldur (as half-siblings).
Symbols: A sword and the Tiwaz rune, representing victory and justice.

Role in Mythology:
The Binding of Fenrir: Tyr famously placed his hand in Fenrir's mouth as a pledge, allowing the gods to bind the wolf, demonstrating his commitment to his word and the gods' safety.
Warrior's Patron: Invoked for courage and victory in battle, and associated with the fairness of combat.
Law & Order: Presided over assemblies (things) and was a guarantor of oaths, embodying lawful order.

Legacy: Though sometimes overshadowed by Odin and Thor, Tyr was a vital, ancient Germanic deity, sometimes equated with the Roman god Mars. He remains a symbol of honor, duty, and the courage required for true justice, even at great personal cost.