User blog comment:Ixarising/High School DxD Dream Battle/@comment-24421137-20140114083620/@comment-1359322-20140114090427

No there's no Gremory Magic, it's that those born from the Gremory are known to possess great magic talent. Sirzechs was born with the magic talent from the Gremory and the POD from the Bael. Rias, however, was born with the Bael's POD only.