Down to my final 39 rolls. I just need 10,920 EC which I might be able to farm for at least the next 3.5 days even without gem refills.

It's good that the combo of ?-8 + SG Advanced is the best method to farm EC this time around, compared to the previous 2 events, letting me farm life crystals without worrying about EC output (eventually got enough crystals for my first gold skillbloom, given to Evening Primrose).