1. Vegas Golden Knights Acquire Mark Stone
At the 2019 trade deadline on February 25, Mark Stone was acquired from the Ottawa Senators along with Tobias Lindberg. In exchange, the Vegas Golden Knights sent Erik Brannstrom, Oscar Lindberg, and a 2020 second-round pick. While there was some fun trivia involving the swapping of Lindbergs, the Golden Knights acquired their captain.
While the trade hasn't worked much for Ottawa, Stone has made an incredible impact. The Winnipeg native has scored 89 goals and 167 assists in 274 games with the Golden Knights, making him an incredible asset. He's a vocal leader who betters everyone on the team, too. Therefore, it's safe to say that the Golden Knights won this deal.