Sacred Transformation

In what seemed like a blink of an eye, another cluster of weeks passed for Kieran in this Trial-scape.

After learning of Heartsbane's ongoing creation, it frequently played on his mind, especially after hearing it was a weapon the Cardinal intended to give him.

However, though weeks had passed, Kieran hadn't heard confirmation that the Cardinal had emerged from the subterranean forge shrouded in darkness and metal. It seemed to be a comfortable environment for the old man, where he could be at peace and focus.

It was honestly astounding how well-immersed the Cardinal was while forging. Kieran suspected the Cardinal enjoyed forging more than he did the bloodshed of brutal battle — like it was his natural habitat. 

What dire circumstance could have shifted his path from pursuing transcendence in the art of smithing to barbarous combat?