After being held without a point in Game 1, a 4-0 loss, Rantanen had four consecutive multipoint games, one shy of tying the Avalanche/Quebec Nordiques record set by Peter Stastny (1982) and Peter Forsberg (1997, 1999 and 2002).
"I mean, that's Mikko for you," Avalanche captain Gabriel Landeskog said. "He's in really good shape and injuries happen in this game, but to be able to come back like he has is pretty impressive. And to step into the playoffs like that? It's not easy to do. He's been a force. We've seen him be a force for two years now in this League, and especially this season.
"Now, he's taken it to a different level. It's good to see."
Rantanen's most pivotal performance came in Game 4.
After he tied the game on a late redirection power-play goal, Rantanen completed the comeback on a one-timer inside the left post off a cross-ice pass from Carl Soderberg at 10:23 of overtime to give Colorado a 3-2 win.
"When you get hurt at the end of the year, you also get some rest," Rantanen said. "Obviously, it sucked. It's not fun to be hurt, but you have to find some positive things and maybe one thing is that I got rest and felt good coming back. The medical team did a good job to get me ready to play in this series.
"Great team effort in all five games. 4-1. That tells the story."