User blog comment:B214/Question and Answers/@comment-24098614-20131125092654/@comment-68.210.8.41-20131128074942

However, the number of pieces comsumed as well as the type of piece that was consumed can be a reflection of that servent's potential. It may not reflect their power, but some - if not most - Devils can grow with their power and their potential in tamdem. This has been observed among reincarnated Devils in particular.