Ras, The Dancing Blade
Beroalf was a barbarian who traveled from the cold north in search of adventure. He sought treasures and glory, but soon all he wanted were companions to share in the excitement of battle, much like those he had left behind in his faraway village. Unfortunately, his coarse remarks and rudimentary hygiene repelled most travelers he met, until he expressed his thoughts to a sympathetic mage. The mage, for a price, constructed Ras, the dancing blade. Though not quite what Beroalf had in mind, he was thrilled nonetheless, and wielded the sword for many years.  How they were ultimately separated is not known.
Other interesting swords: