Connection between Forgotten Realms and Greyhawk

[gyor]

That old FR Cosmology is a confusing, unexplained relic at this point, even FR's 4e's world axis cosmology got merged with 2e Great Wheel Cosmology to produce The Great Wheel+ or Great Wheel Axis Cosmology of 5e.

 

[gyor]

This thread is old...

Anyway, the answer lies in the Spelljammer campaigns box. Toril, Oerth, Krynn, lie each in a separate Crystal Sphere in the same Prime Material Plane. A cleric can receive spells from his god, only if the god has a presente in that Crystal Sphere. Otherwise you were limited ti 1-2 Lvl spells. A Cleric could always pray for spells from a similar god (Pelor-Lathander etc)
There were exceptions: pantheistic faiths, or the cult of Ptah, God of travel...

Interestingly enough Ptah was worshipped in Realmspace, but not primarily in Mulhorand which did acknowledge him for leading the Egyptian/Kushite/Libyan and Babylonian/Assyrian/Sumerian/Canaanite Gods to Toril to liberate the Mulan. The people that primarily worshipped Ptah in Realmspace were the Halflings of Andor, another Planet of Realmspace.

Ptah as the God of Spelljamming was a very odd D&D trait.

There is one odd unexplained Temple of Ptah in Chessenta.