Zhou Jifeng was also shocked by this terrifying, limitless energy. Back when he led a team to destroy this barrier, he used all his strength but couldn't move it an inch. He never expected Ji Tiandao could fill the barrier by himself!

Lu Zhou didn't stop and continued to pour in energy.

Instant recovery wasn't true restoration; to connect the formation's core with the surrounding formations continuously was the only way to make it everlasting!

Even Lu Zhou was somewhat surprised by the bug-like nature of the Peak Trial Card, inexhaustible and endless. If it weren't for the time limit, this tool would be invincible; there'd be no need to improve cultivation, just the Trial Card would suffice.