The Rahma do not posses any element or special abilities aside from what one would expect from a Human. However, it should be noted that they are different from humans, as they live much longer due to the presence of the Ancients. Unfortunately, they are more vulnerable to the Plague than the Ancients and suffer greater side affects.
The Rahma's weaknesses are much greater than the other breeds because they do not have the special attributes of the Ancients. This is why they are often referred to as the "Lesser Breed."
*Note: Not all clans have a subclan.