What's the best way to use non native gems ?

[Arryn]

Boron left out Wind Ride as a major use for air gems. Another excellent use for Nature gems is to crank out Ivy Kings which in turn can crank out hordes of upkeep-free Vine Ogres. Fairy Queens are another good use for Nature. Flames from the Sky alone justify fire gems, but another great use is to create Sceptres of Authority in the mid game and Rods of the Phoenix later on. And you can always alchemize them for gold or other gems. Fire gems have more uses than Boron may think. And I don't understand how Boron can mention all the handy items that require Astral, plus Acashic record, and various globals, nevermind Wish and then not include Astral in his list of "most important" gems. Boron, though, is absolutely correct in saying that you can never have enough gems.