User blog comment:Ixarising/High School DxD Dream Battle/@comment-24421137-20140114083620/@comment-16281343-20140114084732

Sirzechs powers came to be because he inherited both Venelana's POD and Lord Gremory's magic talent.

Personally, I think Rias is the perfect example on how the Bael clan uses POD. Just shoot the POD and hope that the target is hit and turned into nothing.