Maroon's line, which includes Yanni Gourde and Cedric Paquette, combined for six points (three goals, three assists).
"We all kind of play the same way, we find a way to get pucks," Maroon said. "We find ways to use the back of the net, we're creative in a way that we are good at protecting pucks and not forcing plays, and we know how to attack to the net, and we know how to go high-to-low. We all love crashing the net."
Sam Reinhart scored for the third time in the two Global Series games, and Carter Hutton made 35 saves for the Sabres (9-6-2), who are winless in their past five games (0-4-1).
"We asked for a different game. We wanted a stronger compete, and we felt that we had it," Buffalo coach Ralph Krueger said. "There were stretches of the game today where we were very close to where we want to be as a team and how we want to play, and specialty teams did decide the game again today. Our power play let us down, as did our [penalty kill] this weekend."
Tampa Bay went 3-for-7 on the power play in the two games, including 2-for-3 on Saturday; Buffalo was 0-for-2 in each game.
Maroon tied the game 1-1 with a power-play goal at 17:02 of the first period.
After Hedman gave the Lightning a 2-1 lead at 1:58 of the second, Maroon scored his second of the night with three seconds left in the period to make it 3-1.
Victor Olofsson, one of four Sweden-born Sabres who played Saturday, scored his seventh goal of the season, first at even strength, to make it 3-2 at 4:14 of the third.
Gourde made it 4-2 at 9:48 of the third when he extended his goal streak to three games, and Mathieu Joseph scored at 10:55 to make it 5-2.
Jack Eichel scored with Hutton pulled for the extra attacker with 38 seconds remaining to make it 5-3. Lightning coach Jon Cooper challenged for offside, but the ruling on the ice was upheld after video review.
"It's frustrating. That's the bottom line; it's frustrating," Eichel said. "I thought we did a lot of good things, it just seemed like at the timely moment when we needed a goal, we weren't able to find one."
Reinhart gave Buffalo a 1-0 lead at 9:30 of the first period. Video review confirmed that the puck crossed the goal line before McElhinney caused the net to become dislodged.