Dark Sun: The Scorched World of Athas
Sixth Sword of Tyr
The Sixth Sword of Tyr has a broad blade, featuring a crystalline hilt.
This is one of nine swords crafted by the Veiled Alliance in an attempt to create a weapon capable of killing the sorcerer-kings. The Veiled Alliance was infiltrated by agents of Kalak and the swords were scattered to prevent them from falling into his hands.
The materials and craftsmanship suggest that it was not an artifact from Tyr’s distant past, but the powerful enchantments are unlike anything that this age has to offer.