A good friendship off the ice has turned into great chemistry on it. Paul Stastny and Wojtek Wolski were in perfect step in the Colorado Avalanche’s 4-2 victory over the Minnesota Wild on Sunday night. Stastny scored twice and assisted on Wolski’s empty-net goal with a second left. “I think we’ve built a pretty good relationship,” said Wolski, who also assisted on one of Stastny’s goals.