Quote Originally Posted by katsalia View Post
Was there actually a point in doing Ragnarok this event since they never added in the trade option into the exchange for the material?
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.