Saudamard was a strange and unique hero, an orphaned Hin (the name halflings use for themselves in the Mystara setting) raised by animals in the wilderness. Saudamard himself claimed that he was raised in a nest of rust monsters in the Cruth mountains, but for the majority of his life, this was not taken seriously. Even his name, bestowed upon him by other Hin local to the region around Longflask and Aergruth, in the northeast corner of the Five Shires when he began to pop up once in a while, was part of the joke, a rough play on the Karameikan phrase Sau D' Amarad, or "Prince of Beasts".
Saudamard either never got the joke, or didn't take offense to it, and though he remained wild and uncouth for a Hin, he gained some popularity among the locals as a vigilante of the backroads, sometimes showing up to aid travelers beset by bandits or monsters.
When the Hin of the Shires invaded the Black Eagle barony, a corrupt fief of Karameikos, whose King encouraged the military action and made no attempt to aid the Baron, his estranged cousin, Saudamard was in the thick of things, wearing his usual battle worn and trail dusty leather armor, but carrying only a simple club. A fitting end to a people's hero, Saudamard fell in the battle that freed his kin from the atrocities of their wicked neighbor, but odd stories began to spread, tales that during the battle, enemies hit by Saudamard's club saw their armor and swords crumble apart into ruin, and were forced to fight defenseless and without arms or flee the field. Dismissed at first, the tales became so common and popular that Saudamard's old stories of being raised by the rust monsters started to be taken seriously.
Saudamard's Club appears as a well made but battle worn club, about 2 feet in length, with the handle wrapped in stout leather and stone rings, etched with tribal art style depictions of rust monsters, where a normal club might have rings of metal.
The Club is foremost a Club +1, granting its bonus to the wielder's hit and damage rolls. In addition, any successful hit on non-magical metal (including armor, weapons, etc) causes the target to Save vs. Paralysis or have that metal item immediately crumble away into rusty dust. Unlike a real rust monster, the club has no affect on magical metal.
Due to the chaotic bumping and jostling of combat, there is a 5% chance per combat (not per attack) encounter of the wielder accidentally striking his own armor or possessions, invoking the club's power.
This flaw is realized by the weapon's owners rather quickly, and is the reason none have kept the club very long since Saudamard's death. It might currently be found around the Five Shires or Karameikos, abandoned or sold by its last owner.