Another 'moment.'
That night, the Bruins famously rallied from a 4-1, third-period deficit to send the Toronto Maple Leafs packing.
Lucic, of course, figured prominently, scoring once and adding an assist as part of the delirious, late-game comeback.
While the stakes weren't nearly as high on Thursday, it was a massive showing all the same and drew similar vibes to his past, playoff success.
"Tonight, he said, 'Here we go. You guys can follow me.' And we did," Ward said. "I thought after that first couple seconds with that fight, it settled our guys in and I thought our guys got a big lift from it."
The true measure of an impact player isn't always recorded in goals and points. And while the big man is heating up and has begun to bring that more consistently, it's the culture - the intangibles - behind closed doors that have made the largest impact here in Calgary.
Lucic has been at the forefront of creating a positive environment for players, young and old, to blossom with this group.
His teammates are comfortable, confident in their own skin, brought closer together by a man who's been through it all and has made it his life's mission to be that galvanizing presence among those he calls brothers.
He might not wear a letter but his leadership has helped the Flames advance for the first time since 2015.
"I've seen it time and time again with him," Ward said. "When you need a big moment, he finds a way to supply a big moment.
"Tonight, he found a way to supply a big moment and we followed right behind him."