Mist (term)

Mist is the recurring magic phenomena in the series. It is usually associated with magic, and its extraction allows people to use magic.

Final Fantasy IX
Mist is given out by the Iifa Tree. It is the souls of Gaia, being refused to flow back into Gaia's cycle of life. They have now become stagnent, and monsters come from it.

Airships use mist to power their engines. However, this is dangerous, and means they can only fly around the Mist Continent. Kuja also taught Queen Brahne how to make Black Mages from the mist.

Final Fantasy XII
Mist is the source of magic in Ivalice. Mist gathers in stones called Magicite, and anyone wielding these stones can extract the mist to use magic. The other form of magicite, Nethicite, absorbs mist, thus nullifying any magic effects. If Deifacted Nethicite absorbs too much mist, it will release it all suddenly if someone tries to extract it, in a violent explosion. Manufacted Nethicite cannot handle too much mist, simply shattering if it absorbs too much.

Final Fantasy: Unlimited
Mist is what Makenshi gets his powers from. Able to actually breath out mist, he must wear a mask to make sure he doesn't release too much. He also keeps bottles of mist on him, and if he breaks one, he is able to summon the Mist Dragon.