Atronach:  One of the lowest in terms of population, but one with a deep history.  Whereas the Elementals became the Aristocracy of ages past, the modern Atronachs- mixed spawn of the true Atronachs and Elementals- was the religious backbone.  It was quite common to see a high-ranking Atronach when visiting a Temple, and it still is one of the places to come across them.  While Elementals appeared more or less human, these beings look different- possessing horns unique to each individual, tending to be taller, and having magical markings upon the length of their body.  Similar to Elementals, their Element decides the coloring of both their markings and their eyes.  Another interesting note about them is that they are notably long lived. Not quite as much as Elves, but still can live a very long life. 

Blessing: Magic has +1 Accuracy
Curse: Takes double damage from opposite element