In the middle of the room, there was an object resembling a crystal ball.
This is the superpower testing crystal invented by the Science Department.
As soon as someone uses a superpower to attack this crystal, it can completely display relevant data about the superpower's attributes on the computer beside it.
This invention is considered one of the most practical creations by the Science Department in recent years.
When Jamie stood before this crystal, his hand suddenly lit up with black lightning.
Yang Yan, who was standing nearby, frowned as he saw the black lightning on Jamie's hand.
This guy keeps bragging, but he indeed has reasons to be proud.
"Thunder Roar Cannon!"
Jamie shouted, holding his hands together like a cannon muzzle aimed at the crystal.
Boom!
A black lightning bolt roared out like a laser cannon and shot toward the crystal.
A deafening explosion resounded as the guy blasted a huge crater in the ground.
