But where was that emotion in Game 1? That's the perplexing nature of this talented team that has so underachieved in years past.
Consider that Rielly, Nylander, Matthews and Marner have yet to win a Stanley Cup Playoff series in six previous tries. Tavares has been part of just one series win in his 14-season NHL career, that coming with the New York Islanders in 2016.
Too often, Toronto's big guns have sputtered in the postseason when it mattered. And while there's still a long way to go, a loss would have meant the series shifting to Tampa with the Maple Leafs needing to win four of the next five games.
That's a tall task against a Lightning team that has made three consecutive visits to the Stanley Cup Final, especially when you consider Toronto has not won a playoff series since 2004.
In Game 2, the Maple Leafs' best players were their best players, something that's happened far too rarely in postseasons past.
On this night, the Big Five combined for 14 points (six goals, eight assists). Rielly led the way with four assists, tying a single-game Maple Leafs postseason record for points by a defenseman, previously held by Allan Stanley (Game 5, 1960 NHL Semifinals), Wally Stanowski (Game 5, 1942 Stanley Cup Final) and Ian Turnbull (Game 6, 1976 quarterfinal round). Tavares (three goals) and Marner (two goals, one assist) each had three points; Nylander (one goal, one assist) and Matthews (two assists) each had two.
"I think for me, I can only comment on how the group felt," Rielly said. "We wanted to have a really good start and really respond after a game we weren't really proud of."