"They made the Stanley Cup Final]*
"Mason is a young and talented two-way player that will immediately bolster our lineup," Stars general manager Jim Nill said. "He possesses offensive skill and has shown he has the size, physicality and grit to make an impact on both sides of the puck."
Marchment said knowing Stars coach Peter DeBoer and assistant Steve Spott also made Dallas an appealing destination.
"'Spotter' and my old man were friends for a long time and I used to go watch games with my dad in Kitchener and go see 'Spotter' after the games and stuff like that," he said. "He was always great to me. For Pete, I met Pete when he started coaching the Sharks when my dad [former Sharks scout Bryan Marchment] worked there and he seems like a really great guy. I had a little conversation with him. It seems like he really believes in this group and I do too. So I think it's going to be a great fit and I'm so excited."
Signed as an undrafted free agent by the Toronto Maple Leafs on March 18, 2018, Marchment has 58 points (20 goals, 38 assists) in 91 regular-season games with Florida and Toronto and three goals in 10 playoff games.
NHL.com staff writer Tom Gulitti contributed to this report.
