Boston Bruins: Brad Marchand -- Patrice Bergeron -- David Pastrnak
The top line of Marchand, Bergeron and Pastrnak combined for 260 points in the regular season, with all three members having NHL career highs in points (Marchand: 100; Pastrnak 81; Bergeron: 79). Pastrnak and Marchand combined for 16 points in four games against the Toronto Maple Leafs this season, and Pastrnak led the Bruins with 13 points in seven games against Toronto in the 2018 Stanley Cup Playoffs.
Calgary Flames: Johnny Gaudreau -- Sean Monahan -- Elias Lindholm
The trio of Gaudreau, Monahan and Lindholm was together for 76 of 82 games during the regular season, the most of any line among 2019 playoff teams. Monahan and Gaudreau finished fourth among point pairs (56 team goals with each having a point) in the regular season, and all three players had NHL career highs in points (Gaudreau: 99; Monahan: 82; Lindholm: 78).
Tampa Bay Lightning: Tyler Johnson / Yanni Gourde -- Brayden Point -- Nikita Kucherov
Kucherov had a historic regular season, scoring 128 points, the most of any NHL player in a single season since 1995-96. Point, who broke out for 66 points last season, took his performance to another level with 92 in 79 games. The third member of this line was Johnson for most of the season but Gourde saw time there down the stretch, making each forward a sleeper target in fantasy pools. Kucherov (59 points in 62 games), Point (16 points in 17 games) and Johnson (50 points in 64 games) have impressive playoff track records.
Toronto Maple Leafs: Zach Hyman -- John Tavares -- Mitchell Marner
The line of Hyman, Tavares and Marner led all NHL lines with 53 goals at 5-on-5 during the regular season. Marner led the Maple Leafs with five points in four games against the Bruins during the regular season and nine points in seven games against them in the 2018 playoffs. Tavares, who's making his playoff debut for the Maple Leafs, had 22 points in 24 career playoff games with the New York Islanders.