Dungeon

In the Forgotten Realms, they worshipped the spider goddess Lolth. However, they also worshipped Vecna, the lich god, and Talona, the lady of poisons, and someone else...

But there's more. Because, as I understand it, they are building a separate world. And therefore, it is not necessary to discard everything from FR. It is necessary to take a little from there and a little from somewhere else. For example, the snake made of symbols of the High Elves in Heroes 5.