Hayton scored on the power play at 9:43 of the second period to make it 2-1, beating Dobes on the glove side with a snap shot from the right circle off a quick pass from Clayton Keller up from the goal line.
“I thought we did a really good job in that second period, just managing the game better,” Hayton said. “We found a way, and we dug ourselves a bit of a hole in the second period, so I think we did a good job with that tonight, but it wasn’t good enough.”
Yamamoto tied the game 2-2 at 11:58, scoring at the netfront off a backhand pass from Dylan Guenther from outside the left post.
Carcone gave the Mammoth a 3-2 lead at 13:52, picking up his own rebound and chipping it over Dobes for the goal.
Juraj Slafkovsky looked to have tied the game at 2:31 of the third period, but the Mammoth challenged the play and it was ruled that Slafkovsky was offside prior to the goal.
Suzuki tied the game 3-3 at 3:20 of the third period with a one-timer when a rebound came to him in the left circle.
Demidov gave the Canadiens a 4-3 lead at 4:47, picking up a loose puck just inside the Mammoth blue line and beating Vejmelka with a shot on the blocker side.
“The Demidov goal was a big goal,” St. Louis said. “After that, we defended against a team that brings a lot of speed. We got the job done five against six. Dobes played an excellent game. Nothing was perfect, but we found our best.”
NOTES: Canadiens defenseman Adam Engstrom made his NHL debut on Wednesday after being selected in the third round (No. 92) in the 2022 NHL Draft. “I was a little bit nervous at the start. Once you get into it, it's fine,” said Engstrom. “It was an awesome experience and really good that we got away with the win too.” ... Mammoth defenseman Sean Durzi returned to the ice after missing the last 21 games with an upper-body injury. “Just wanted to contribute,” said Durzi on his return. “Whether it's on the ice, off the ice, bring some energy, do something.”