Talk:Ogre Hunter Tales/@comment-217.217.206.89-20140331181301/@comment-24653364-20140401004444

Index swaps between gold and crystal rewards once you go above 300.

Also, if you grab the 4 spirits needed to get him to S, you can just hang onto them until you've completed your other spirits. I have bad luck with invoking and tend to have downtime between waiting for daily quests and finding another spirit that's worth evolving.