Do any of these events have must use characters? I've been trying to save SC to get to the 100 stamp card, but its going slow now that we're getting weeks off of events again. My box is always within 15-20 of being full and that's without stocking up fairies. For units I started at the Fairy Village event, I managed to get a minimum Rowana and the only rare premium summon unit I've gotten are Nanally and Liddy.