The fact that they couldn't change their class for the second time and learn the [ mountain and earth shattering Strike ] was one of the weaknesses of the Berserker Legion. However, Lu Chen didn't care about it because when his subordinates reached the time for their class change, the number one Demon God, Kazan the sword spirit, would definitely be able to revive again.
Don't forget, those barbarians who had changed their class to Berserkers were equivalent to the first Demon God's believers. When they killed their enemies, the killing aura they emitted could help the first Demon God recover its strength quickly.
The more believers there were, the stronger they were, and the faster the first ghost God would recover its power.
Therefore, Lu Chen wasn't worried that his people wouldn't be able to improve. He was worried that his people would improve too quickly.
