A bit more lore.  A balance against overpowered magic.
[hider=Might]The Universe created the gods, and not the other way around.  This means that the universe can continue to grant power if it so chooses.  The Primary ways to gain a piece of this power are greatness, partnership, and grants.  These are not mutually exclusive.  Also, when we are discussing divinity in humans we are discussing a fraction of it, not suddenly being a god.

Greatness can come from renown, accomplishing tasks, or being badass.  Typical heroes like knights gradually gain this type of divinity.  This is the most reliable form of divinity around, and those who wield it tend to be familiar with the benefits they receive.

You can also partner up with a divine or partially divine beings in order to gain their strength.  Extremely powerful beings like gods will grant you power based on faith and an understanding of their philosophy.  Paladins and Bishops strive to understand the greater beings of the universe.  Lesser beings like dragons may join up with a person for any reason, and over time they will lend each-other both their divinity and some of their characteristics.

The last way to achieve some divinity is by being born or granted it by the universe.  People with particularly prestigious or powerful bloodlines, gods, vampires, dragons, and other mythical creatures simply have some divinity upon being created.  This type of divinity tends to interfere the least with magic.  However, it also has the most weaknesses since the condition can be removed.
[hider=Some of the benefits]The only real cost of divinity is that it is hard to use with magic.  No one knows why, but it just is that way.  However, here are some benefits you could possibly have.
-Respect of great beasts.  Things like dragons may decide to talk to you.
-Faster and stronger
-Legendary weapons tend to synchronize themselves with divinity, amplifying their effects
-Rage can become strength, unlike magic where a constant calm is required.
-Simple luck[/hider]
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