A guandao is a Chinese pole weapon named after general Guan Yu from Romance of three kingdom.
It is like a European fauchard and sometimes has a notch to catch an opponent's weapon.
Mounted on a 5-to-6-foot-long (1.5 to 1.8 m) wooden or metal pole,
with a very deeply curved blade but unlike most polearms, for use with sweeping cuts relying on its range and power.
The weight of the blade and the leverage of the handle would have allowed it to cut through most leather,
chain, scale or light lamellar armor of medieval China.
(In contemporary Wushu combat, a large veil cloth/tassels is attached to confuse opponents.)
THANK YOU Geobra for this historically accurate weapon! (and not like the first drawing below
)