Staying true to form, the final dealing day of the season was busy. Coming on the heels of the most active deadline day in 2006 when 25 trades were completed, at least 20 went down in the final hours Tuesday. Islanders general manager Garth Snow mulled offers for Blake, an impending unrestricted free agent this summer, and then pounced when Smyth became available when contract talks with the Oilers broke down. New York sent first-round picks Robert Nilsson (2003) and Ryan O’Marra (2005), along with the Islanders’ first-round choice in this year’s draft to Edmonton for Smyth, who has 31 goals and 53 points in 53 games this season. The Sharks sent left wing Ville Nieminen, college forward Jay Barriball and New Jersey’s first-round pick to the rebuilding Blues for Guerin. The injury-plagued Bertuzzi was traded by the Panthers for forward Shawn Matthias after playing seven games this season. 160Want local news?Sign up for the Localist and stay informed Something went wrong. Please try again.subscribeCongratulations! You’re all set! Norstrom, the Kings captain since 2002, is the team’s career leader in games played among defensemen with 780. He has two goals, seven assists and 40 penalty minutes in 62 games this season. “Mattias solidifies our defensive group and also adds character and veteran leadership to our locker room,” Stars general manager Doug Armstrong said. “We look for him to make an immediate impact on this hockey club as we push towards the playoffs.” In separate trades, the Kings acquired defenseman Jamie Heward from the Washington Capitals for a conditional fifth-round pick in 2008 and sent little-used forward Jason Ward to Tampa Bay for a fifth-round pick in 2007. Heward has four goals, 12 assists and 27 penalty minutes in 52 games. Ward had an assist and four penalty minutes in seven games. The New York Islanders kept their leading scorer and stole the one that makes the Edmonton Oilers go. The Islanders, just minutes before the NHL trading deadline expired Tuesday afternoon, took Ryan Smyth away from the Oilers after deciding to hold onto Jason Blake. The big deal trumped those made earlier in the day, including ones that sent Bill Guerin from the St. Louis Blues to the San Jose Sharks and Todd Bertuzzi from Florida to Detroit. LOS ANGELES – The Kings traded defenseman Mattias Norstrom, right wing Konstantin Pushkarev and two draft picks to the Dallas Stars for defenseman Jaroslav Modry and three draft choices Tuesday. The moves were the latest in a series by general manager Dean Lombardi to unload players before Tuesday’s trade deadline as part of his efforts to rebuild the slumping Kings, who will not make the playoffs this season.