As I recall, that's the name of Thor's hammer.
Only found a lightsword once in many games myself, and that was plain luck, as I didn't try any reloading tricks. If I remember rightly, think it came in the Bayjin hut chest. Nice weapon to have, when you have it
Nightowl2
P.S. Congrats, Loudhy. Shows you why you have to keep playing!