A Devan Wavesword
A +1 Wavesword
This rusty, worn, curved sword was used by the devan to fight their titanic enemies. One of the best ways to kill a titan was to take off its head. And the Devan got to be VERY good at it eventually. In addition, devan blade manufacturing was very advanced. the alloy is strong, and holds its edge VERY well in spite of more than 16 millennia of age and dust.