Ummmmm, is there anyone here who can corroborate what enemy dominion SHOULD do, and what it DOES do?
I can tell you with absolute certainty that I am being affected by enemy Magic scale (not Drain). It's easy to see on small maps where centers of dominion overlap in strange ways. Also, I am quite positive that Growth as well as Prod provide beneficial effects.
I would not be surprised if only the Luck is different, as it makes perfect sense theat their good luck is your misfortune, but the other scales just are what they are.
(Edit: I thought it important to add, that this is consistent behavior. It has happened to me for so long, I do not question its relevance in my games. Maybe it's because I still play a lot of SP as well, and so don't border on so many vaguely homogenized dominions.
)