User blog comment:Stbk22/Possible power up/Techniques 2 for New Arc/@comment-73.46.6.122-20161116205854/@comment-10330822-20161116213147

I don't think that's a very unrealistic idea. In fact, I feel most people think Kiba is eventually going to be able to use both his Balance Breakers at the same time. However, I always thought that instead of him absorbing the holy energy of the drag troops, he'd just give them Holy Demonic Swords to use.

There's also the fact Kiba has Gram and the other Demon Swords. Gram and the other swords absorb Kiba's life force as he is using them, but other series that use demons and demon swords indicate that if your demonic power is strong enough, you can overpower the demonic aura of the blade and subjugate the swords to not draw on any life force. Also, Vali introduced that fact you can feed your demonic energy into a technique or object that normally absorbs life, meaning there is probably ways Kiba can get around Gram's life absorbing properties.