Necropolis versus Academy.

In this case, Lordesat is right - the "Lord of the Dead" skill does not provide a bonus to dark energy.

I also confirm that he is right. That is, I don't see any point in leveling up this perk if you're not aiming for a Single Attribute build. It's useless. At least make it a 50% bonus... Its roots go back to version 1.0, where it was much more useful. They probably just forgot to change it or didn't bother... :(