Call of the Blood's Memory

The combination of a "form" of alchemy, combined with old blood magic. The caster touches the individual from whom the blood used, is from. That person must make a constitution saving throw. D.C. 15 minis the caster's wisdom modifier. On a fail the spell fails and nothing happens. On a success the individual must then make an intelligence saving throw D.C. 12. On a fail you regain a perfectly clear remembrance of your entire life, which remains clear for the next 48 hours. On a success you can recall every memory of an ancestry, two generations back for every number over 11 you rolled on the previous Intel role. The memory remains clear for one day for every generation gained plus one day. Either a success or failure, when the individual comes to after a minute, and for the next hour, the individual can experience nausea, extreme headaches, unable to speak clearly, nose bleeds, and virtigo, (DM's choice, based on the first con save)