In opposition to legendary Asian weapons i propose European one: the Quernbiter .
Quernbiter - Viking sword, so named because it was used to cut a millstone in half.
"King AEthelstan gave Hakon sword whose hilt as well as haft was of gold. Its blade was most excellent and with it Hakon cleft millstone to its center, whence it was called Quernbiter. that was the best sword that ever was brought to Norway."
Heimskringla: history of the kings of Norway
Snorri Sturluson,Lee Milton Hollander
Quernbiter - Viking sword, so named because it was used to cut a millstone in half.
"King AEthelstan gave Hakon sword whose hilt as well as haft was of gold. Its blade was most excellent and with it Hakon cleft millstone to its center, whence it was called Quernbiter. that was the best sword that ever was brought to Norway."
Heimskringla: history of the kings of Norway
Snorri Sturluson,Lee Milton Hollander