Final Fantasy III/WMG

Warning: Potentially unmarked spoilers for Final Fantasy III.

Xande wasn't stripped of his immortality.
He was given the option of dying. The other two would live forever, no surcease, no comfort beyond knowledge of the arcane and possibly eventual godhood until Tellah could divine a spell to kill himself, or the power of Dream and a facade of every desire being fulfilled but death unless a method of "true" eternal rest was found, but Xande could live, grow in knowledge and power, even love another mortal as only a mortal can, then once his life was over, die. Instead he decided to, denying himself that chance because he wanted to screw over the world instead of looking at the possible advantages of his gift.
 * This makes sense and it's much better than the in-game explanation, IMO.
 * What about the fact that is able to kill Doga and Unei?
 * Damn, that's tough. Umm...the power of the Crystals did it?
 * They have the Age Without Youth type of Immortality. They can still age to SUCH an extent, but they can still be mortally wounded.

The four main characters in the Famicom version are the Light Warriors from Final Fantasy I.
Essentially, III is a prequel to the original, detailing how the Light Warriors became so powerful, and how they got the four crystals they're found with in I. Sometime after the four return to Ur, they travel to Cornelia, where their crystals somehow had their lights extinguished.

Obviously, this theory only makes sense for the Famicom version, since the DS version gives the characters identities and ends with them going their separate ways.


 * So, the Surface World of FF3 = Overworld Map of FF1?
 * Doesn't explain why they forgot how to change class, how they forgot all their spells, and how the Thief forgot how to steal, for starters.
 * They each realized that the best path to power was to pick one class and be that only from then on. The spells starting at the Lv1 slots for FF 1 are Lv9+ slots to the equivalent of FF 3, following the logic of "yeah, they're just THAT powerful now".