From publisher blurb:
Blood mystic are doubly gifted - their blood carries a connection to both the arcane and divine. This allows them to delve into a breadth of power unavailable to almost anyone else. Blood mystics feel that the distinction between arcane and divine is largely meaningless, for tasks impossible to a mighty cleric or wizard comes naturally to them.
Prestige Class: Mystic theurge.
Build Classes: Oracle, sorcerer.
Role: The blood mystic has a unique palette of powers, and is able to both support her party and control the battlefield. Skimming across such a wide array of abilities forces the blood mystic to make many hard choices, both between what powers to seek in their blood and in how to use those powers.