Deekin cocks his head. "Well, Prime Material only be one plane. Abyss, Celestia, Nine Hells all different planes, lots of others too but Deekin not remember." He considers. "Deekin guess Negative and Positive Energy plane, and Elemental Planes, but most of them just infinite expanses of light or fire or air or whatever, so they not really count in Deekin's opinion."

Tynan babbles reproachfully. Deekin rolls his eyes. "Also Plane of Shadows, yes, thanks Tynan. Plane of Shadows mostly just like regular Material Plane but darker, though. And full of slightly worse people."