Concepts to develope

Constants and anomalies.
As time is not linear, it can change direction, go foward, of backwards, loop and repeat, diverge and reconnect, things change and vary. A constant is that which is always present in one way or another, or just simply can't be undone by methapysical beings like Valanthur or Hermes, although they could kill it, they can't undo it. Examples of this are Arnukia, Adelram of the Blackheart, Parsifal and maybe Nivikus. Valanthur itself could potentially be one but it is unclear because of it's whimsical nature and even though it could seem, Hermes is not a constant.

Constants could also remember the past or the future and see paralel versions.

Abyssions
Abyssions are the beigns that came from the abyss, it is not defined yet exactly how they are, they could all share a kind of shape, or they could vary in size or form, some concepts include abstract concepts. Not all abyssions are bloodthirsty. It is yet to be defined what is the abyss and what are the abyssions beyond servants of the dragon.

The abyss could be a place where constants and tangents of different realities intersect and can possibly go to another reallity.

Reality convergence
Elfs, myths, concepts of fantasy that didnt exist in our world, came to be present after the day of the dragon. things that werent there, suddenly where, including towns, people and landmarks.

Spellcrafters
Scribe-like hermits that code and desing posible spells. It is a very scarse profession, and very jealously guarded. The spell itself that works as a coding engine for new spells is very secret, and even if obtained, it requires years of mastery, not even grimoires know how to operate it without training, then the spell must be accepted at least by one Administrator.

Administrators
Administrators are a middle man in the chain between the fundament and the grimoires/users. They reside in places of power, mostly old servers of Hermes, they take over an area and regulate it, imposing rules and upkeeping the proper fundament functioning so grims can work after the dragonday. Places without admins are dangerous, the fundament is unstable and hard to tame, and usually a no mans land, but also a place of no rules for those who dare venture it. Adminless zones are the principal setback for trying to expand the Free reach.

For something to become admin, it must have access to the server and be powerfull enough to survive the attunment with the raw fundament.

Dragons motives
Knowing adversity is the only way to evolve, the dragon aims to help us break our shell and see the outer world, but Hermes wants to prevent it as it sees it as the apocalipse. The dragons means are brute and too tortuous