The end of an Era has come. Magic is broken. New Heroes are needed to face the challenges of the new Age!
Came to the realization that Ettin's wouldn't use a 2-headed sword - as each head controls a arm. So I will re-roll that
As they are Ettins, they probably took it from someone they killed and use it as a one handed sword, or just keep it cause its pretty. Dumb creatures just have things they find, not necessarily useful.