Tira's Eiserne Drossel from Soul Calibur - Stats?

[Varthanna]

I am making a ninja NPC that works for the Aspis Consortium and would love to have her similiar to the character Tira from Soul Calibur. What would you use for the weapon's stats?

Here's my go:
Battle Hoop
Exotic Two-Handed Weapon 1d10 19-20x2 Disarm, Performance, Monk