To be fair, although the Pope was elderly, he was bolstered by the power of faith, and his strength was second to none, easily rivaling or even surpassing Disa Kate.
The moment the Pope made his move, it was extraordinary; the defensive array of the dark castle was shattered in an instant...
The reason the Pope had held back earlier was to conserve his strength and save his ultimate technique for Cain. Descending as a heavenly god consumed an immense amount of cultivation and physical energy, and at his advanced age, putting himself through such strain was simply too much to bear.
Chapter 555