Heroes 6 - Discussion

Well, as far as I understand, Glorias are upgraded Light Elementals, and the Naiad Maidens, belonging to the Inferno faction, are likely upgraded Water Elementals. The only thing I don't understand is what they're doing as part of the factions and how to distinguish them from neutral creatures without hovering the cursor over them.
The Keen-Eyed Infernal looks interesting, but for some reason, I'm not impressed. And I think the Eye of Sauron will continue to amuse all players for a long time.