this may surprise some here, but i rmbr early on it was Twice-ikept getting cardr after card it felt like, even after trading away card after card until it seemed like i couldnt give em away, 'swhen i realised the way to stop getting the same cards/embrace it was to COLLECT all their cards!!after tat i stopped getting their cards from request, similarly i think pristin n t-ara for awhile until i bit the bullet n finally completed n kept their sets.slowly ggs i dont stan also joined em but not all.yet! after tat period of time i dint notice much returning cards(unless thru roulette, but tats kinda different-so imtrying to complete n keep batch 1 female solos for tat reason). otherwise i cant think of any cards boomerang-ing bk to me more recently.hoping not to jinx it.