Mikael Granlund gave the Predators a 1-0 lead at 15:31 of the first period on a redirection of a shot by Forsberg on the power play.
"Good net-front players, they kind of see what's going on up top and they're timing the shot a lot of times," Nashville coach John Hynes said. "As the shooter is going to approach getting the puck to the net, that's when they set the screen. [Granlund] does a really good job. He's got good timing, he's fearless, he takes away the goalie's eyes, and that's why he's been an effective guy there."
Calle Jarnkrok made it 2-0 at 16:49 on a shot from the slot off a pass from Granlund. Forward Rem Pitlick got his first NHL point with an assist in his second NHL game.
Josi scored on a power play at 12:37 of the second period, but Dallas coach Rick Bowness challenged for goaltender interference by Granlund, and the goal was disallowed after video review.
Tolvanen scored with a slap shot 35 seconds later on the same power play to increase the lead to 3-0 at 13:12 of the second period. It was his fifth goal of the season and second in two games.
"My job has gotten a lot easier," Forsberg said. "I just try to find him and then usually it ends up in the back of the net. We obviously knew about it coming in, even before he made it over [to the NHL], we heard about that shot. Now you watch it in practice, and you watch it in the game, and it's great. It's definitely one of the best shots that I've seen, and we need him to use it more."
NOTES:Dallas defenseman John Klingberg missed the game because of the birth of his child. He was replaced by Mark Pysyk. … Stars forward Jamie Benn had an assist for his 699th NHL point. … Granlund's goal was the first allowed by Oettinger in the first period in nine games in the NHL (60 shots). … It was the second multipoint game in 23 NHL games for Tolvanen. … Pavelski had 10 shots on goal. He has six points (three goals, three assists) in the past seven games. … Stars defenseman Miro Heiskanen had two assists playing 32:30.