Yaarel
🇮🇱 🇺🇦 He-Mage
In my head canon, all of the Neutral alignment planes are Elemental.They're not associated with the elemental planes; however, they fill the niche of an fire/necrotic/poison element blaster as an archetype. Someone with an innate affinity for fire magic (or dark magic, etc). Its like saying that red dragon sorcerers are fire elementalists, even if they're not from the fire elemental plane.
At a personal level, Lawful Neutral versus Chaotic Neutral, is group versus individuals.
But at an atomic level, Law versus Chaos, is "wave" versus "particles". The True Neutral is a kind of Dao optimizing between them, as a third way.
Thus the Neutral planes and their dynamic function as the aspect of Astral thought involved in the production of the physical forces, elements, and matter that the rest of the multiverse is made out of.
The creatures LN Modron, TN Rilmani, and CN Slaad, should be the creature type Primordial. The LN correlates the Elemental Law, while the CN the Elemental Chaos.
These Primordials are still Astral thought, but they are the thoughts that cause the Elemental forms to come into existence.
Like the 2024 Tiefling, the 2024 Aasimar might "casually migrate" from the Celestial planes.Plane Touched is the traditional D&D name for those descended from celestials, fiends and elementals. Further, there are times in D&D lore where one becomes plane touched (or dragonborn, etc) via ritual instead of ancestry. The name is fine.
Aasimar are mortals. The vast majority of games take place on the material plane, and the plane touched are born, live, and die there; they don't casually migrate from spiritual worlds.
While Aasimar in the Material Plane are mortal, the Aasimar in the Astral Plane including the Celestial planes are immortal.
What do the Aasimar cultures look like in each of the Celestial dominions? They are the "people", the prominent cultures of these planes.
The 2e Eladrin do go on missions.They can be good, evil, lawful, chaotic, neutral. There is no more something forcing them to be angelic missions than your average human. Hells, humans are more likely to be on world saving missions, because they tend to be more humans (and thus more human clerics and human paladins) than there are aasimar in the multiverse.
We are talking Celestial cultures. Different kinds of Aasimar are members of diverse cultures across the Upper Planes.We're not talking culture.
Referring to "biology" is in the most abstract sense, since Celestials like the rest of the Astral are constructs made out of thought.We're talking raw biology and poor game design that pushes players towards very specific classes through overly specific mechanics.
Different Aasimar cultures allow for different Aasimar jobs, excelling at different player classes.