User blog comment:B214/High School DxD DX.4 discussion/@comment-178.235.147.3-20170914214754

i dont know what you think but i suspect that AxA power would be a key to unlock full power DxD (assuming that AxA granted power to transform into giant sized Dragon as we see in EX series). Giving Ise part of his own body Great Red make a perfect vessel to contain Ophis powers and when Ise learn to using that his "former" human form won't be a obstacle that couldnt hold  Infinte Power