What won't and What will (1).

The battle felt like it had gone on for hours, and yet, only a few minutes had time by...

Since his mana was nowhere near infinite, it was only normal for him to be reaching his limits after having so many spells activated at once.

The worst thing about it all was that it seemed as though they hadn't made any progress at all.

'Although they are doing their best, it isn't enough. Should I...'

The thought to intervene flashed through his head, but Cain quickly reigned himself in with a bitter expression forming on his face.

He was currently in no situation to even think about helping out. For one, the moment he lost focus, the Astra Avatar would come undone. Not only that, but the tremendous amount of Ki and Devil Essence used to manifest it into reality would go down the drain as well.