LAS VEGAS — The scariest sights in basketball include Chelsea Gray with the ball in a last-shot scenario. She took the dribble-handoff from A’ja Wilson, angled toward the right elbow of the free-throw line, leaned into Golden State Valkyries defender Kaila Charles, and faded back for her patented shot. Shots like this will put Gray in the Hall of Fame. Off balance. On the money. “I thought it was in,” Valkyries guard Veronica Burton said. “I was under the basket, so I got a good look.” It rattle