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Home » Aetolia Classes: All 32 Classes Across Four Cities » The Siderealist of Aetolia

The Siderealist of Aetolia

Last Updated: May 25, 2026
Siderealist of Aetolia class portrait

The Siderealist is Aetolia’s untethered cosmic mage, the newest class in the game, channelling Astranomia (stellar magic), Ostension (constellation-summoned regalia from the twelve Mejevsavelnel), and Crystalism (celestial-vibration crystal magic) from the Vashnar Mountains.

At a glance
TetherUntethered
CityNone (origin: Vashnar Mountains)
GuildNone; apprentice from Heiress Rashemi in the Vashnar Mountains
Skill setsAstranomia, Ostension, Crystalism
Mirror classNone (untethered)
Sister class in guildNone
Signature mechanicSidereal regalia drawn from the 12 Mejevsavelnel constellations
Best forPlayers who want cosmic-scale magic and an outsider’s roleplay frame

Following the Creator’s Monomachy and the Eschaton’s unprecedented act of Creation, a vast well of power blossomed from newly forged stars and planets, its unseen radiation suffusing existence entire. The Siderealists are the mortals who learned to seize this energy and shape it into magic. They are the newest class in Aetolia and the first to draw their power from beyond the world itself.

If you want a mage class with a fresh power source and no centuries of guild politics behind it, the Siderealist is built for that. The craft is still being mapped.

Origin and lore

The first Siderealists awakened to their talents shortly after the True Creator’s planetary genesis. Some are born with the capacity for cosmic magic. Others train into it. A rare few possess wild talent that reveals itself in trance-like states during childhood. In serious cases, an untrained child can pose a danger to themselves or others without meaning to, with extreme stress catalysing unintentional expressions of power that look very much like psychosis or trauma to the uninformed.

Modern training runs through Heiress Rashemi in the Vashnar Mountains, where the apprenticeship costs 40 credits. Rashemi is the only known instructor, and the craft is young enough that the field is still being mapped. The Empyreal Vault, the vast cosmic gulf around Aetolia, hosts six additional planets beyond Aetolia itself, plus stars, nebulae, comets, and asteroids that provide limitless sources of the energy a Siderealist channels.

The class sits outside city politics and outside the Spirit-Shadow tether. A Siderealist draws on the stars, not on a side.

Skill sets

The Siderealist skill sets are Astranomia, Ostension, and Crystalism.

Astranomia is the raw stellar magic. The Siderealist channels cosmic energy from beyond Aetolia’s bounds. Accomplished practitioners manifest miniature moons, rings of stellar dust, and entire systems of tiny stars. From dying stars to the forces that set planets oscillating on their courses, the art covers the broad spectrum of celestial sorcery.

Ostension is the constellation school. The twelve major constellations of Sapience’s skies make up a legendarium called the Mejevsavelnel. Each carries a myth of origin. Ostension summons sidereal regalia drawn from these legends, imbued with the essence of the figures they represent. A diverse gallery of heroes, horrors, wizards, and tormented souls source these regalia, and each manifests a different power on the wearer.

Crystalism is the resonance and vibration school. Originally studied by the Magi of old, then the Ascendril and Sciomancers, it fell out of practice when the Master Crystals lost tonal purity. The Eschaton’s act of Creation breathed new celestial life into crystals throughout the world, and Siderealists revived the field. Different crystal shapes conduct invisible energies at different frequencies, influencing both mind and matter.

Skill abilities

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Astranomia

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Ostension

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Crystalism

Visual style and identity

Because there is no formal guild, order, or other organisation, Siderealists possess no distinct uniform. The talent strikes individuals from all walks of life, so a Siderealist is just as likely to be in a leather jerkin as a ball gown. Many eventually adopt iconography of the Mejevsavelnel as accessories or spell foci, which lets commonfolk pick them out in a crowd. Those focusing on Crystalism tend toward durable clothing that survives geological work, while learned arcanists and forest-dwelling ritualists trend in other directions.

Without exception, Siderealists exhibit a cosmic glow in their eyes whenever they embrace their power. Simply holding the power triggers it, with the brilliance intensifying during active spellcraft. Scars, tattoos, and other bodily markings adopt a similar glow when filled with astral essence, revealing how thoroughly the energy permeates the body. Many practitioners emulate the graceful motions of the Eschaton, which lends them an otherworldly calm even when not casting.

Side effects of the work

The scale of what a Siderealist works with is hard to overstate, and it warps their relationship with the everyday world. Many users eventually grow detached from the physical. Some become hermits or recluses if they survive the dissociating trances that come with working raw astral force. Forced to view the big picture, Siderealists sometimes lose sight of reality and life’s complexities, viewing them beneath their notice compared to the wide wonder of the cosmos.

Wielders of Ostension grow disenchanted with childhood tales and casual interpretations of the Mejevsavelnel, as proximity to sidereal regalia drains the fantasy out of speculative stories and burdens them with a truthful understanding of constellation powers. Those who devote themselves to Crystalism exhibit bruises, scrapes, or cuts from geological pursuits, and those who frequently experiment with new vibrations complain of a perpetual ringing in their ears.

Who plays this class

The Siderealist suits players who want cosmic-scale magic with a strong outsider frame. The kit is broad: stellar offense, constellation buffs, crystal-vibration tricks. None of the three skills are simple, and the class rewards investment.

Roleplay-wise, the class is unusual because it lacks the centuries of established lore that frame, say, the Templars or the Sciomancers. Siderealists share very little in the form of belief systems. Some are practical and rigid in their study. Others claim to have communed with the cosmos and speak to wild conclusions drawn from their visions. The grace they emulate from the Eschaton gives most of them an otherworldly demeanour in day-to-day life.

If you want established guild politics and millennium-old lore, look at a tethered class. If you want a magic style that feels new in Aetolia and a roleplay frame you can shape yourself, this is the class.

Origin and apprenticeship

The Siderealist has no city affiliation and no guild. Apprenticeship runs through Heiress Rashemi in the Vashnar Mountains for 40 credits. She is the only path into the class.

Because the Siderealist is untethered, you can multiclass freely with either Spirit or Shadow classes and move between cities without losing the class. Race choice is independent of class, so you can play a Siderealist of any Aetolia race.

Frequently asked questions

Mixed. The roleplay frame is approachable because no centuries of lore are required to play one, but the mechanical kit is broad and rewards a player who likes to learn three distinct skill schools. New players who already enjoy mage classes elsewhere often pick it up quickly. The trial system lets you test for free.

The class only emerged after the Creator’s Monomachy and the Eschaton’s act of Creation, both relatively recent events in the Aetolian timeline. The cosmic energy that powers Siderealist magic did not exist in its current form until those events created the stars and planets of the Empyreal Vault.

Yes. Like other untethered classes, the Siderealist can hold citizenship in any of the four cities without losing the class. Some players settle in one city for guild and social purposes while remaining a Siderealist for the magic itself.

Other classes to consider

Three classes worth a look if you like the Siderealist profile. Or see the complete class roster for the rest of the roster.

Voidseer

Spirit-tethered Sentaari mage who draws power from the Void between planes. Pick Voidseer if you like the cosmic-scope magic and the planar-philosophy roleplay frame but want a guild structure, Duiran setting, and the Sentaari’s chakra-based stability mechanics.

Archivist

Shadow-tethered Spinesreach scholar who treats reality as a numerological problem. Pick Archivist if you like the academic, knowledge-seeking roleplay frame of a Siderealist but want a guild and the Spinesreach Republic’s research culture, plus the Numerology/Geometrics/Bioessence kit.

Ascendril

Spirit-tethered Enorian mage who channels the four elemental planes through a fulcrum. Pick Ascendril if you want a guild-anchored mage class with elemental focus and a clear lore tradition, set against the Sciomancers as a mage-rivalry frame.

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