Quote Originally Posted by Aidoru View Post
Cores are saved altogether from every event and can be used for more important things in the future. So all the cores you've gotten from this and Ixion are totaled up. You can see that in the inventory or if you go to the Ixion exchange shop and see that you can use cores you've gotten from this event on that past event's shop. Though don't use them on grails, it's a huge waste.
Then I'm really glad I didn't waste the ones from Ixion. But overall I felt too pressured to try Ragnarok for these ones, having to work Phoenix and Apoc at the same time was just too much time investment/AP waste.