Power

'Angel Breath.' 

He punched the air and created a combination of fire and spinning wind that drilled through the plant vines coming from Rey's weapon. The strength of Arthur's spells had been improved ten times with the divine will pulsing through his core. 

He charged, feeling nothing but absolute superiority. And by letting it take over him, Arthur managed to pull out his abilities in balanced portions—as if it all felt familiar to him. The sword was now overflowing with Nevermore's mana. So it was safer to end this fight quickly before his dimension ring started to heat up from the overpowering god-like mana that made Nevermore what she was. 

Mafias' puppet had reanimated itself and jumped in right after Arthur circled his fist in red flames. Its hands morphed into magma and both their fists collided with a heatwave that drained the air of its oxygen.