Tyr

Tyr (pronounced: /ˈtɪər/ TEER) was the lawful good greater god of law and justice in the Faerûnian pantheon. He was the leader of the coalition of deities known as the Triad.
Tyr was particularly popular in the lands of Calimshan (where he was worshiped as Anachtyr), Cormyr, the Dalelands, the Moonsea, Sembia, Tethyr, and the Vilhon Reach.
An interloper deity, Tyr was the same power as the god of the same name in the Norse pantheon, although in the Realms he was worshiped only as a god of justice and not as a god of war. As the only Norse power worshiped in Faerûn, if a cleric of the Norse pantheon came to Toril from another world, he or she would be granted spells through Tyr.