The Blues got all their goals in the third period to beat the Wild at Scottrade Center in the preseason finale for both teams.
"This really from start to end was more our game," coach Ken Hitchcock said. "We looked organized on the ice, we had good spacing. We played a very strong game."
Both teams open at home on Thursday: St. Louis hosts the Nashville Predators, while the Los Angeles Kings visit the Xcel Energy Center in St. Paul.