Thread:B214/@comment-24098614-20140907223337/@comment-1359322-20140907233624

First, it's only possible so it doesn't mean it'll really happen. Second, Kuroka was reincarnated using 2 Evil Pieces, so Issei would need to use 2 Evil Pieces to reincarnate Kuroka, an Evil Piece even if it's a Mutated one won't do.