Leason, 22, has one goal in five games with Hershey this season and is tied for third on the team with 11 shots.
The 6'5", 215-pound right wing recorded 20 points (9g, 11a) in 33 games during the 2020-21 season with Hershey, including 13 points (5g, 8a) in his final 15 games. The Calgary, Alberta, native surpassed his rookie point total of 14 (3g, 11a) set in 2019-20 in 17 fewer games in 2020-21, while also tripling his goal total. Leason ranked fourth on Hershey in goals and points and second in shots (74). Additionally, Leason was one of five skaters to appear in all 33 of Hershey's games and was the only Hershey player to record a power play goal (1), a shorthanded goal (1) and a game-winning goal (2).
In 88 career games with Hershey, Leason has 35 points (13g, 22a).
At the junior level, Leason registered 89 points (36g, 53a) in 55 games with the Prince Albert Raiders of the Western Hockey League (WHL) during the 2018-19 season. In 190 career WHL games between Prince Albert and the Tri-City Americans, Leason recorded 140 points (60g, 80a). He received the 2019 E.J. McGuire Award of Excellence in 2019, presented annually by the NHL to a prospect who best exemplifies commitment to excellence through strength of character, competitiveness and athleticism.
Leason represented Team Canada in the 2019 World Junior Championship, recording five points (3g, 2a) in five games.
The Capitals selected Leason with their second round pick, 56th overall, in the 2019 NHL Draft.