I know that Saavedro's world, Narayalan (sp?), is sustained by the lattice tree. Whether or not the lattice tree is also their god, I'm not sure. Many Saavedro fans have voiced their desire for more information about him, but I don't think they've gotten any results.
In my opinion, Saavedro wouldn't be speaking English, so his manner of speech is a work of translating what he said so the Stranger can understand it.
RAWA did state that certain things were expressed differently from actual events for the sake of the novels that Rand and Robyn wrote. (This was when he officially verified that the Cleft was in New Mexico.) Perhaps they did the same with translations for the games.
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D'ni :
“Ash nazg durbatuluk ash nazg gimbatul ash nazg thrakatuluk agh burzum-ishi krimpatul”
Translation:
“One ring to rule them all, One ring to find them, One Ring to bring them all and in the darkness bind them.”