Despite the overflowing Force in his core, he was able to control them and maintain them in his core. It is thanks to the Rune Tree that was perfectly carved.
While he was sucking the energy around us and using Limitless Force, his Rune Tree was refined in the process as well. This is also an excellent proof that Force and Runes are proportional.
While his Force Core was radiating in brightness, his Rune Tree was even brighter. His tree has colors mixed of orange and red, while countless Force was encircling it as if to protect it from an enemy.
The orange and red colors mixed, turning into vermillion flames that surrounded Arthur's core and tree.
'Flame affinity? No, even fire affinity Guardians cannot achieve something like this. It is exuding flames, but hotter than an actual fire.'
"Arthur, are you okay?" I asked after inspecting him. He didn't respond. "Arthur?"
After calling his name for the second time, Arthur finally responded. "I am. I was just taking a look at my core and tree."
"You scared the crap out of me." I flopped down on the ground. I stared at the prodigy with worry, yet a mix of happiness as well. The former because I thought he was a goner. The latter because he was able to achieve something that not even I could. Also, I finally repaid the debt I owed to his father. "Well, at least things went successful despite the rough process. Good job, Arthur."