Alanna of Trebond and Olau's Sword Lightning
Lightning is doubled edged like a broadsword, but is said to be much lighter. The hilt is studded with gems and topped with a crystal. Said to be a relic of the Old Ones, Lightning also has mysterious magical properties. These magical properties are first shown when the sword saves Alanna from death.
Alanna: The First Adventure (First Appearance)
Tamora Pierce
Alysia Derry-Chavez
Image Source URL: http://static.tvtropes.org/pmwiki/pub/images/518W7A1ZWDL.jpg
Novel
Alanna of Trebond and Olau's Crystal Sword
Created by Duke Roger and wielded by Alanna of Trebond and Olau, the crystal sword contained magic to wild and great to be wielded by lesser mages. Gray in color, and imbedded with a symbol on the hilt, this sword infuses anyone who holds it with blood thirst and is responsible for two deaths. Alanna was able to partially tame the sword and later combined it with her broken sword, Lightning.
First Appearance: The Woman Who Rides Like a Man
Tamora Pierce
Alysia Derry-Chavez
Image Source URL: http://aeliareads.files.wordpress.com/2010/06/thewomanwhorideslikeaman.jpg
Novel