Conflict in the source

In a karate move, another stream of fire came from his foot. Arthur began punching and kicking the air rapidly, with fire emerging from every limb he moved.

Suddenly, Arthur stopped and took a large breath. When he exhaled, fire started coming out of his mouth.

Arthur stopped, panting and smiling from the adrenaline rush of having superhuman powers.

For many hours, Arthur continued training to get used to using the source's power throughout his body, aiming to create muscle memory.

To the point that he wouldn't need to channel the source's power consciously; it would happen automatically.

What Arthur didn't expect was that his foot would start to catch fire, causing him to panic. But after a few moments, when the skill provided by the system activated, he found himself unaffected by the fire, not even the trousers he was wearing were affected.