THE SMART TRICK OF DICE THAT NOBODY IS DISCUSSING

Tieflings are available in all places with the worlds of the material plane, even though They may be rare to unheard of. They are available on the worlds of Toril, Oerth, and Eberron, amongst quite a few Some others. Perhaps the record of these historical empires was uncovered through the dragonborn and tieflings with the Realms from these sites.