Thassilon Primer

The ancient empire of Thassilon (pronounced THAH-sih-lon) occupied most of western Avistan for over a millennium. While its power was great, struggles for control within the nation itself tore Thassilon apart. All that now remains are mysterious ruined monoliths scattered throughout the landscape of Varisia.


The Seven Domains

  • Bakrakhan – Wrath – Evocation – Siccatite
  • Cyrusian – Pride – Illusion – Horacalum
  • Edasseril – Envy – Abjuration – Noqual
  • Eurythnia – Lust – Enchantment – Djezet
  • Gastash – Gluttony – Necromancy – Inubrix
  • Haruka – Sloth – Conjuration – Abyssium
  • Shalast – Greed – Transmutation – Adamantine


Founding & Rise to Power

Thassilon was founded by the benevolent emperor Xin, who first harnessed the power of rune magic. Due to the immense size of the empire, Xin established seven fiefdoms run by his most trusted advisors and the most powerful arcanists in the land. As his personal influence over the nation became smaller, his ideals were also pushed to the wayside, making way for the villainy of the sinful runelords, who gained even more power than Xin, but did so on the backs of the people of Thassilon.

The Fall of Thassilon

The true reason for Thassilon’s destruction has been lost to time, but several theories exist. It is quite likely that the constant feuding between the power-hungry runelords ruined the nation from within. Some historians theorize that the enslaved stone giants revolted and tore apart the very structures and edifices they were forced to build, outlawing the use of rune magic. A smaller number of Thassilonian scholars hypothesize that, in their efforts to explore newer and darker realms of rune magic, the runelords unleashed an evil power so immense that even they could not control it, resulting in the downfall of their arcane empire. Whatever the reason, Thassilon is no more than a thing of legend in the modern world—a reminder that even the mightiest can fall.







  • Siccatite – This shining silver metal is either incredibly hot or freezing cold when found. As of yet, scholars have not determined whether siccatite is actually two similarly hued metals or a single type that determines its own temperature via some unknown process.

240gp per pound

  • Horacalum – The rarest of the known skymetals, this dull, coppery substance warps time around it, making things seem to speed up or slow down.

400gp per pound


  • Noqual – Noqual looks almost like a pale green crystal to the untrained eye, but can be worked as iron despite its appearance. Noqual is light—half as heavy as iron, yet just as strong. More importantly, noqual is strangely resistant to magic.

200gp per pound


  • Djezet – One of the strangest of the seven known types of skymetal, rust-red djezet is liquid at all temperatures. This makes the metal relatively useless for crafting metal objects although many gifted metallurgists have had some success creating djezet alloys.

100gp per pound


  • Inubrix – This soft, lead-like material can pass through iron and steel without touching them, seemingly shifting in and out of phase with reality. This quality earned the pale metal the nickname “ghost iron.”

360gp per pound


  • Abyssium – Known also as feverstone (a somewhat misleading name, as abysium is a metal like all the others), this glowing, blue-green substance can be a source of great energy. However, it also causes those who spend extended amounts of time near it to grow ill and die unless proper precautions are taken.

400gp per pound


  • Adamantine – The most commonly known starmetal, adamantine is extremely strong and favored by weapon and armor smiths alike for its ability to cut through solid barriers with ease and endure heavy blows.

300gp per pound

Thassilon Primer

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