Bloodlines, also called Origin Powers, dwelled deep inside the body of some beings. They had to be awoken individually and required bending the laws of the World to a certain degree.
The stronger a Bloodline the harder it is to awaken them by chance and through unique encounters. In fact, some Bloodlines were strong enough to cause severe backlashes upon being awoken.
If the vessel was not strong enough, even death was possible. However, under normal circumstances, death was not something that would occur during a bloodline awakening.
Usually, the backlashes of Bloodlines could be summarized in a single word- Flaw.
All Bloodlines had specific flaws. Some would cause the wielder of the Bloodline to go senile whenever the Bloodline's Power was triggered, the wielder's personality might change after the Bloodline Awakening, or a fetish would be formed due to the power of the Bloodline.