I feel Zalk's sword doesn't really count, it's not supposed to be part of an "ordinary" item curve. It's a hidden reward you get for making the effort to kill Z despite the game and the power discrepancy telling you not to try, more like an Easter egg than anything else.

It's also not the best weapon, Tyrsword for example is a better choice for a two-handed fighter.


Optimistically Apocalyptic