I clearly understand everything you said.

I play this game for more than 8 hours a day. I have been playing it since before Commander Bakt-Nimlot (with high exp) existed.

However, due to system problems, thrall often die and are easily killed.

After several weeks of operation, due to system anomalies, thrall are rarely successfully upgraded to level 20.

Commander Bakt-Nimlot (with high exp) only reduces the risk of loss and time for me

that’s all.