Unique with 5 socket

I found

Rune Master (

Ettin Axe ) unique with 5 socket. I know unique can't make runeword but 5 socket + name of the

Axe makes me curious. Is it ?

No, you can't build runewords in it. But it does come with 3-5 sockets by default. Really the only way to have more than 1 socket in a Unique is to have it be designed to have more than 1 by itself. There's a few of those out there.

Rune Master as the name is probably a nod to the fact that you can slap up to 5 of them in there and be happy, even without being able to make a runeword in it.