Quote Originally Posted by Doomgaze
Demi is Gravity elemental, which is very similar to Shadow, yes.
If by "shadow" you mean "the force which draws all objects toward the earth at the same rate" then yes, shadow and gravity ARE very similar.

FF has a plethora of spells which aren't strictly speaking "elemental" but act like they are anyway. Death is a good example. Death is not an "element". You can't do "death damage" to anyone. However, there are a lot of enemies throughout the FF games that have resistance to "death" spells.

However, there ARE earth and wind elementals, they're just incredibly useless. In fact, if you want to see the full list of elements, just go to a character's status screen in FFVII and scroll through until you get to the attribute defense section. Fire, Ice, Bolt, Water, Earth, Wind, Poison, Shadow and Holy are all there as I recall, and possibly some others as well.