Soulbound Summoner (Summoner Archetype)
(art by Dmitry Burmak on Artstation)
Not every summoner bond is created equal. In many cases, summoners draw upon an entity either as an aspect of some greater being that otherwise remains in its personal domain across the planes until called, not so much in the case of soulbound summoners.
As their name suggests, a soulbound summoner’s eidolon is bonded to their very soul and mind, almost in the same way that spiritualists are to their phantoms. This has the benefit that the eidolon draws upon the spirit of their master to attain greater power, though there is cost as well complicating matters.
Soulbound summoners rarely make these pacts by choice. Some may have been forced into the pact by circumstance, such as an outsider and mortal being forced to partially merge their very souls to escape some mutual destruction, while others might not even be true outsiders at all, but rather a spiritual manifestation of a part of their soul and psyche (which yes, is very similar to certain spiritualist archetypes that were also inspired by Jojo’s Bizarre Adventure and the Persona games).
No matter the origin of their mystical passenger, these summoners share a bond that is exceptionally strong with them.
Now, this archetype is meant to be used with the unchained version of the summoner class, but the abilities it replaces are the same as the original, so feel free to use it with that version of the class as well.
The strong bond between summoner and eidolon takes a lot out of them, so much so that it actually debilitates the mage pretty strongly, giving them the penalties (and eventual benefits) of an oracle curse. This also means that the mark the two share manifests in a way indicative of the curse, such as on the mouth and lips of those cursed to speak in tongues, or on the limb afflicted by the curse. However, since they are so intertwined that the eidolon resides within the mystic’s psyche, it cannot be banished by magic that casts out outsiders to their home plane. The eidolon is also the same morality as the summoner, even if that would normally clash due to their type.
Like other practitioners, these summoners can give up some of their own vitality to keep their eidolon around and vice versa. However, they can also do so out of combat, as well as even when the eidolon has been banished with physical violence, allowing the summoner to restore them to vitality within their mind and not have to wait for them to reconstitute before being summoned again.
However, unlike other summoners, these mystics don’t study other forms of conjured minions nearly as much, and therefore, have no special reserve of power to conjure long-lasting summons into being, forcing them to mostly rely on their eidolon and summons cast from actual spells.
Making up for those drawbacks though, their eidolon draws extra power from their master, causing them to develop different evolutions at an accelerated rate. Additionally, the eidolon can draw upon their master’s own reserves of arcane power, effectively letting them also cast spells using the summoner’s knowledge and spell slots for twice the spellcasting. However, the transfer of power is extremely inefficient, requiring twice the amount of expended energy for spells cast from the eidolon.
This is a pretty interesting archetype, and definitely meant to feel a lot more like a persona or stand from a class that already heavily has those vibes to begin with. Losing out on summoning and getting an oracle curse are pretty heavy costs, but getting more evolution points, the ability to revive their eidolon when it “dies”, and also the potential of casting multiple spells in a round without quickened spell are all quite powerful, though that last one is pretty unsustainable with how it costs an extra spell slot to do, which makes sense. Aside from that, you’re free to build them however you want, with perhaps even greater focus on healing and supporting the eidolon than before since you don’t really have a backup if it goes down in the middle of a fight.
At this level of bond, it can be a serious question to ask where the summoner ends and the eidolon begins. In the case of eidolons birthed entirely from the psyche, this is simple, but I imagine in the case of fused summoner and outsider duos, there is a chance of bleeding over. Do they struggle to reconcile the difference? Does the eidolon chafe under it’s very being warping to fit the morality of it’s master, or did their worldviews blend during the forging of the bond?
Once, long ago, the giants of Dalgaro, who were trapped in a great cave-in, called out to a powerful earth elemental to be their guardian and protector in these new trying times, binding the elemental spirit into their chieftain’s body, where it was passed down from chief to chief over the centuries. Now, as bloodlines have blended and their people regressed, even the elemental itself has forgotten it’s name, but the chief still maintains the tradition of calling upon the stone god to defend them.
Bonding someone or something to your soul is almost akin to a marriage, albeit not one necessarily done for love. As such, among the catfolk Yothal clan, the art of binding a powerful outsider to oneself is heavily ritualized, and the leadup to it requires a lot of meetings, summonings, and interviews for compatibility, lest a bad match be made.
When the Blood Star, a magical comet whose radiance brings death passed over, most heeded the prophecies and hid, letting it pass over so that the world could recover and return to normal. However, the light reached the dread lord Malgadath and his foe, an angel known as Yensuthiel in the middle of their climatic battle. Following their merciful nature, Yensuthiel did something desperate, fusing with the villain to save his life. Now, the two are bonded, Malgadath cut off from his former dark power by their presence, and Yensuthiel unable to leave. What sort of adventures could such an odd couple get up to? Only time will tell.









