[quote=@ineffable]
[@Thinslayer]Oh and also I was thinking of our subplots, couldn't the ring just grant us the conclusion to our subplots?
[/quote]

The ring's power is actually very limited. High Elves are not gods; they're mages. Erudessa was a master craftsman and powerful mage, but she can't manipulate time or personalities. The rings are basically remote magic wands - they siphon power from a mana source, and the mage casts it from whoever wears the ring. The spells you can request from the ring depend entirely on the skill of the mage casting it.