Heart of the Phoenix

Alex's eyes continued to scan through the different B tier techniques, his eyes flickering over every scroll.

Each one promised the same basic improvements: increased energy capacity and physical enhancements. 

He continued to read through the titles and descriptions, feeling a growing sense of impatience. Just as he was about to give up and pick one of the generic techniques at random, one title caught his eye: "Heart of the Phoenix."

His breath hitched as he read the description.

This technique concentrates energy in the heart, enhancing the user's endurance and vitality. It promised a drastically improved supply of energy, like all the others, but also significantly improved recovery rates. 

The name alone struck a chord with Alex. He remembered his Phoenix Fury technique, which resonated with his fire element and Flame talent. It seemed like a perfect match.

"This is the one," Alex said, pointing to the scroll. "Heart of the Phoenix."