Bet

Zhao Boqin nodded at Alex and stood up to leave. "I'll give you an hour. Please try to think within that time. We don't know when we will be sent out," he said before walking away

Alex nodded and got to thinking.

What could he want from this battle? Did he even want anything?

Zhao Boqin used nothing but his spear, so he didn't even know if he had any other artifacts that were not used regularly. If there were, he wouldn't tell him in the first place. 

 He had seen the man use some strong techniques, but none of them would be of much use to him, so he didn't want that. He thought of a few other things he could want from the man, but none of them were as good enough to trade for the Mirror.

The Mirror was an incredible life-saving tool after all.

Far off in the distance, Zhao Boqin watched Alex carefully, waiting for him to accept. He had to accept.