Here is a list of things, concepts or just plain stuff you will not see in StormWorld. There are many reasons why something may not be in this world, most likely because I think it is F'ing stupid.

Orcs

Dragon Disciple

Spell casting abilities for none casters for the hell of it

Flumph's (or Flumphi or whatever)

Sigil

Elminster

Kender

Gnomes (Specifically Gnomes)

Poke-horses

Dinosaurs