Alignment Dynamics: A 3D Model of D&D Cosmology

Imagine the D&D alignment system as a three-dimensional coordinate system:

• X-axis: Good (+) ↔ Evil (−)
• Y-axis: Law (+) ↔ Chaos (−)
• Z-axis: Power or existential level (mortal → demigod → deity)

This separates two very different kinds of change.

For example, when a celestial falls (such as Zariel), or when a mortal is corrupted by devils, the movement is primarily within the alignment plane (X-Y plane).

By contrast, when a devil becomes a god, it mainly moves along the Z-axis (gaining power). Its alignment may remain Lawful Evil.

I also imagine the Z-axis as something like an energy level in physics. A low-level mortal can change alignment relatively easily, like an outer-shell electron changing orbit. A powerful celestial or archdevil, however, has an extremely stable identity. Changing its alignment would be more like a nuclear reaction than an electronic transition—it requires an enormous amount of "alignment energy."

This leads to an interesting comparison between D&D and Eastern religions. In Buddhism, many protectors of the Dharma were originally evil beings (for example, Hariti). Their power remains, but their moral alignment changes dramatically. One could imagine that this enormous "alignment potential" is transformed into merit (功德). By contrast, D&D devils seem to exploit the same phenomenon in the opposite direction. They actively corrupt mortals, tempt paladins, and even seek to corrupt angels. Instead of transforming that potential into merit, they convert it into soul coins, influence, and power.

This raises an interesting question:

Why does the D&D universe portray corruption much more frequently than redemption? Under this model, large alignment shifts represent large releases of "alignment potential energy." Why do fiends actively exploit this potential, while good deities rarely appear to do the same? Is this asymmetry intentional in D&D cosmology?