"It's a building upgrade stone!" He was a little surprised when he saw the original form of the gem.
The gems that the contestants currently had were made from the building upgrade stone.
"What?" Su Wan's head buzzed.
'Building upgrade stone?'
That was an extremely valuable item, much like the troop class upgrade scroll.
It could upgrade a building by one whole level!
"Xu Yuan, why did you suddenly mention the building upgrade stone?"
Su Wan looked at the gem carefully. She wanted Xu Yuan to confirm it once more. She couldn't believe it.
Xu Yuan held the gem in front of Su Wan. "This gem is made from the building upgrade stone!" he said.
Su Wan gulped. She was conflicted. "It would be so great if the gems weren't used to just calculate points and instead, we were able to keep them!"
"Xu Yuan," she said. "Can this gem still be used to upgrade buildings?"
Xu Yuan looked at the gem for a long time. He shook his head.
