[quote=Kiddo]
It sounds like your character doesn't get that magic == life. Imagine his horror if he succeed...
[/quote]

The magic that is life is already in the system, so to speak. The Gods aren't adding anything new, ergo their death won't end life.

EDIT: Badly explained, let me try again. In the same way that killing [Ugh I forgot her name, goddess of the ocean] wouldn't destroy the ocean, because the ocean is actually a part of her left behind. (I know she's part of the void now, not in Neyav, but its the best example I can think up.). Therefore killing her would not be equivalent of killing what she left behind as part of Enduwin. Same would apply to Trayig's sand and the essence of life as I see it. Killing the gods doesn't destroy what they left behind.