[PhilD]

Originally posted by Peter Ebbesen:
Well, fortunately you can consider it equivalent to a considerable reduction in cost of at least 1/8 on every non-astral gem use you have - no other enchantment will do that for you, none even gets close.

Your 1/8 figure assumes the Nexus-produced gems are converted back to the type you cast, right?

Now, if you're instead tempted to convert TO astral from other types, you can think of the Nexus as giving you a 33% break on the "price" of other type uses of gems - like, instead of spending 20 Earth gems and getting effect X, and 10 more Earth gems to alchemize into 5 Astral pearls, you just spend 20 Earth gems, and get effect X AND 5 Astral.