Okay, hear me out: -have 4 yo-kai with Magic Mist or similar such skills (for instance, Smogmella/えんらえんら , Illoo/まぼ老師 , Maginyan/ニャン魔女 , etc.) -give all four Zazel's Agate ring -give them one of the plentiful soul gems that increase soultimate charge. I think mine is Mermother's, but my 2ds won't turn on, so I can't exactly check... -profit I realize that getting 4 Zazel's Agate Rings is no small feat.