Talk:Onigashima Event Re-Run/@comment-97.81.219.157-20170618000338/@comment-50.27.45.188-20170618010906

Do the highest difficulty raid boss you can clear with all the drop CEs you can equip aside from the Golden Sumo on your main damage dealer. Otherwise, wait until Raikou is defeated for the final difficulty level of the free battles. Mountain Trail from Blue Gate section for Coral, Tower from Blue Gate section for Paper, and Hot Springs from Red Gate section for boxes.

Alternatively, you can farm the summit free battles for all currencies, but I'd only do that if you prefer the possible mat drops from those locations more than the ones I already mentioned.