Power of the combo

Raydon stood there, a sudden and overwhelming sense of power washing over him like a wave, as his body was being consumed by the scorching heat of the flames. 

He noticed that his flames appeared to be stronger and more potent than they had been in the past and said, "Damn, its power increased again with my increased spirit stat?" 

In addition to this, he was able to have a very clear awareness of the fact that the blood that his heart pumped through his body rushed through his veins, thereby providing him with an additional boost of strength.

The impact that the Ashen Heart had on Raydon's HP led to the ash element becoming infused in his bloodstream as a side effect. Because of this, Raydon felt an augmented surge of energy permeating his entire being. This was probably due to the fact that the spirit stat has the ability to bolster the Item Holder's elemental properties.