This power was developed as a means of testing a foe’s might — an extremely important ability in the tumultuous early nights of Clan Tremere. By merely touching the blood of his subject, the caster may determine how much vitae remains in the subject and, if the subject is a vampire, how recently he has fed, his approximate Generation and, with three or more successes, whether he has ever committed diablerie.

System: The number of successes achieved on the roll determines how much information the thaumaturge gleans and how accurate it is.