To go on a less Planeshiftesque tangent. The actual modeling of the weapon seems pretty good.
As for the weapon itself, granted it would probably be ungainly to all who were not trained in it. But I can imagine it being quite deadly. It's only large drawback would be the weight.
It's a good defensive weapon with amazing countering abilities, although an offensive style would leave you amazingly open. Darth Maul's weapon (wow, bring Star Trek and Star wars together in one post...I feel cool) would have similar drawbacks as this weapon yet, in the hands of a master, it was outstanding.
As a generic weapon, this would not do. But, as one that would require great skill to merely weild...I can see that working.
@Draklar: Poison the marshmallow
