Can you sculpt fire?

I wouldn't know where to start - yet, that's what we see here from this Heian era (ca 11th century) bronze. Fudo Myoo (see below) is a Buddhist/Shinto god of fire. He's supposed to have a flaming sword (sounds like a light saber to me).

Don't let his belly fool you, he may look a little out of shape, but he's fully prepared to slice you in twain. I'm not sure when curved swords came into widespread use in Japan though they would have been around during the Heian period. I guess if your sword is made of fire, then it really doesn't matter what shape it is.