User blog comment:Piyush Banerjee/Shin DxD 2 discussion/@comment-36663391-20181209201655/@comment-36663391-20181210101040

@ Deathcount333 yes should be possibile but they also are like a king piece because can increase the power of a devil, and I believe that should be necesary using a mutation piece.. I doubt one the Malebranche will be a Issei peerage's members but they are linked with the old Maou so maybe could be members of Vali's peerage.