Blood Vision

You gain the ability to see a moment of the past through the eyes of a creature whose blood you consume. Upon ingestion of another creature's blood, you are stunned for 1 round.  During that time, you experience a memory of the creature through its own eyes which may or may not be of the incident that caused it to bleed. The older the blood, the foggier and more obscure the memory is likely to be.

Once you have consumed a creature's blood in this way, the same creature's blood will never again produce a memory for you.