Kucherov made it 3-0 at 2:59 of the third period, scoring on a one-timer from the right circle off a pass from Goncalves.
"They were really good tonight," D'Astous said of Kucherov, Point and Goncalves. "They were awesome to watch."
Tavares scored a power-play goal for Toronto to make it 3-1 at 16:19 with a wrist shot from the left circle. The Maple Leafs pulled Stolarz, using an extra attacker for a 6-on-4 advantage on the goal.
Just 11 seconds later, Point scored his second of the night with a wrist shot from the hashmarks off a pass from Kucherov to make it 4-1 at 16:30. Point missed the past 11 games and the Olympics with Team Canada due to a lower-body injury.
"He was skating like that all week, it looked like he was chomping at the bit to get back in the game," Zettler said. "Obviously he was crushed he couldn't help Canada over the last couple of weeks, but it was great to have him back. He's a difference maker for us, for sure. He's great."
Knies' snap shot from above the left circle got through Vasilevskiy's pads at 17:13 for the 4-2 final.
"I think we know that, especially after a night like tonight, we have to be better," Tavares said. "There's obviously only so many games left. All we can control is one game at a time, but urgency is high."
NOTES: Kucherov reached 700 NHL assists in 855 games and became the second-fastest player born outside of North America to reach the milestone, behind only Peter Stastny (784 games)... He also reached 30 goals for the ninth time in his career, tying Steven Stamkos for the most in Lightning history. ... Maple Leafs forward William Nylander had two assists. ... Lightning coach Jon Cooper missed the game and will not coach in Thursday's game against the Carolina Hurricanes after the death of his father. Zettler and assistant coach Jeff Halpern will continue to split the duties.