The counterpart of the Firefly Rune. It creates a bad stench surrounding its bearer which causes most enemies to choose another target for single, physical attacks instead. Somehow, the ducks in the Grasslands have gotten collected a few of these crystals and sold them in their Duck Village during the later parts of the Flame Champion War.
If you have still open rune slots and don't know what to do with them, a Skunk Rune may be the right gift for mages and other vulnerable fellows. This item is missable during the events of Suikoden II, making it a valuable loot in this game. - Celes