These are similar to geometers, but study the power that runes and power words hold. They are rare and a dying breed. Because runes and power words are each unique and totally unrelated to each other, each must be researched individually. The knowledge of 1 rune or power word does not help at all toward finding another. This makes the art very slow to expand, coupled with the fact that only a rare few seem gifted enough to pursue it, which means a runecaster may not find a student to whom he may pass along his knowledge, thus this knowledge is often lost.
Runes are lasting enchantments placed on objects or people.
Their power eventually fades over time and must be re-cast. Runes tap into magic at its source, the very power gods wield. Perhaps this is what makes rune casting so difficult. Because runes tap into this primordial power, they are less effected by other magic. Runes take much longer to cast than other spells, measured in hours, days and even years.