"To come in their first year and do as well as they are, it's a testament to management and coaching and the players over there," Marleau said. "Those guys [have] got something to prove and they're doing a good job and it's a good team over there."
After not scoring in seven of eight games from Dec. 3-19, Karlsson has scored in three of the past four. This was his fourth multigoal game of the season.
"I just know when the passes are coming and when they're not," Karlsson said. "More often than not, they're going to pass it to me."
Vegas went 11-1-1 in December, losing in regulation Dec. 1. Its seven-game winning streak and 12-game point streak are the longest by an NHL team in its inaugural season, according to the Elias Sports Bureau. The 11 wins in December are the most by a team in its first season.