An overweight sword made to chop necks on a single blow.
Heavy melee weapon (slashing), generally worse than a battleaxe, but with some sort of bonus against low HP targets.
Low HP bonus ideas:
Anything with effects beyond [damage]{type} would be some sort of rare/magical weapon (or one-shot throwing when I get a chance) and we have not put those in the game yet
The launch assortment of weapons was an intentional simplification, and we're gonna be looking at adding more variety in the coming weeks