negative energy can overlap into any energy, negative energy is something mostly based on the state of mind towards energy. Dark energy itself is an elemental energy that usually can consume and fuck with the mind of the weak willed, some are born with dark energy, some can go to beings like Nyx, Erebus, Kauket , etc and integrate their flavor of dark energy into them. However, someone weak willed shouldn’t integrate themselves with any external energy as some energies can consume the individual and warp their mind a good bit.
Nyx and Erebus energy is very corruptive to weak willed individuals, just as Yahweh’s energy can promote a “holier than thou” personality to those weak willed to a point of detriment, same as the Dagda’s energy can give someone a false sense of inflated ego if consumed by it the list can go on tbh. Never let an energy just consume you, it may sound cool and edgy lol but in the end your mind may face the issues from it.