User blog comment:B214/Question and Answers 6/@comment-99.235.66.221-20161130072057/@comment-10330822-20161214185214

The reason I suggested Ise may balance out more is because he needs to be more than a one-man army in the future. That is the whole concept of being a "King". Things like magic and demonic power are useful when it comes to commanding and assisting your subordinates.

As things stand, Vali is a better "King" because of this. Ise is charismatic and quite honestly a good tactician, much more than he gives himself credit for, but he can't give his team support like someone like Vali or Rias can. Sure he has the "Transfer" ability, but his abilities need to develop more support-like qualities if he is going to lead effectively.

I know most fights are going to end with Ise just overpowering the other side, just look at the fight with Team Lightning in this volume, strategy didn't mean crap, he just blew up the arena.

Also, as stated, the connection between Ise and magic doesn't need to be seperated for the sake of his and Vali's foil, their abilities at the base level are foils. Magic can be just as overwhelming as Ddraig's powers if Ise develops the right kind of magic, and it would expand his skill set while not undermining his whole "power idiot" persona.