Gartner was a member of the New York Rangers team that would go on to win the championship in 1994, but he was traded to Toronto at the trade deadline. However, Gartner got farther than he ever would in the playoffs that same year, as the Maple Leafs made it to the Western Conference Finals before losing to the Vancouver Canucks in 5 games. He was traded close to the NHL trading deadline three times in his career, and had a knack for producing immediately for those teams, as in a combined 35 games with his new teams during the regular season after the mid-season deals, he had 24 goals, 18 assists, 42 points, and a +16 rating.