Stamkos-Point-Kucherov have played together 336 minutes in their careers. Marchand-Bergeron-Pastnak were together 636 minutes this season. They're a trio who have built chemistry playing together for 4 full seasons, and their skill-sets are all unique and complement each other's games: Bergeron's defense and puck retrieval, Pastrnak/Marchand's transition game, Marchand's puck control and playmaking in the O-zone, Pastrnak with the finish.
They also have really balanced scoring where it's tough to single one guy out: Bergeron has 3 straight 30-goal seasons, Pastrnak has 4 straight 30-goal seasons, and Marchand was 2 goals off his 5th straight 30-goal season, so they all scored 30 goals playing as a unit twice, and were a couple goals shy of doing it for their 3rd straight year. The last line to all get 30 goals was Alfredsson-Spezza-Heatley.