Moon Runestone

Negates all special attacks that might be directed against the wearer’s weapon. (E.g., a rust monster’s corrosion ability or sundering attacks from SeyLah’s +2 Sundering Cestus)

Runestones are single use items that are turned in to the coach prior to starting an adventure. The effects get added to your overall stats. One runestone may be used per adventure. However, up to two additional Rare/Ultra Rare runestones can be attached to one weapon (or one runestone each on two different weapons) if the player possesses a Runestone Fitting Base (one per additional runestone) and presents it at the beginning of the adventure with the additional R/UR runestone(s) of choice. Attaching the R/UR runestone still requires the player to turn in the R/UR runestone token, but the Runestone Fitting Base token is not turned in.