User blog comment:Patrick x hunter/Razors Nen ability/@comment-5780397-20180713102255

I don't think he can summon any more than he did. The reason is his ability to add up the Devils: 6 + 7 make 13. Likewise, 3 + 5 make 8, and so on. By adding them up, he creates new Devils, and so he has 14 in total.