Celestial steel

Celestial steel was a type of heavenly metal that originated from the Upper Planes.

Applications
The only recorded use of celestial steel was in the creation of the intelligent relic known as the Sword of Zariel, the namesake blade of the zealous solar Zariel.

Variations

 * Solanian truesteel, a variety of gleaming, fine iron found on Solania, the fourth level of Mount Celestia.

Appearances

 * Adventures
 * Baldur's Gate: Descent into Avernus