[quote=@thewizardguy]
Couple of questions.

1) What is 'Holy Darkness'? Or other 'Holy' elements, for example?
2) If a Darkness user draws from darkness, then does his absorption create light? And does a Light user create darkness when they do the same?
3) If the answer to 2 is yes, then could a light and dark user together form a sort of super-battery?
4) Could 2 people of the same element have different powers based on their speciality?
[/quote]

1) Holy Darkness or any other Holy element just means it is a gift from the Gods. There are special circumstances where this will occur. Either the Creator or Amunet, depending on your character's alignment, will tell you if they have favored you. The favor of the gods is fickle, and does not last long. 

2)His absorption does not create light, it's the shadow thing I described earlier. Now if you are drawing power from darkness in an unlit, windowless room and not shadow, you would instead of destroying something, would create a temporary black hole that would destroy everything within 10 meters of it. 

3)Even if the answer had been yes, the answer to this one would have been no. When drawing power from another Aedis you can drain as much power as they have stored in their crystal and if they allow it, you can even draw power from their life force (which in the history of the Aedis has only been known to happen once and resulted in the death of that Aedis).

4) All Aedis of the same element have the ability to use all of the same powers but it will be different because no two Aedis are the same. For example, Iris is adept at rock walls and other defensive capabilities of an Earth Aedis but is not as talented at offensive capabilities whereas a different Earth Aedis may have been more combat focused with their powers. (You do not want to be on the receiving end of Iris' hammer)