So normally i grind out my sacred crystals in CoA Int with my A team and average 1 or 2 every couple rounds. Today i made a discovery in which i got one sacred crystal with my A team in about 5 rounds but my TM squad that involves a 3* Cecil got between 1 and 3 sacred crystals EVERY round in 20+ runs! So I'm wondering if there is a possible potential for receiving better (or needed) materials if you bring low level characters to your farm. It could be just insanely good luck or I could really be on to something here. Let us know if anybody gets similar results to confirm this.