Asselin comes to Wichita after spending the last three-and-a-half seasons at the University of Quebec-Trois-Rivieres. The 25-year-old was named the 2015-16 CIS Player of the Year after recording 47 points (27g-20a) in 28 games. He was also named to the CIS All-Canadian First Team that same season. In 2016-17, he helped his school claim the Universiade Bronze Medal. Overall, Asselin tallied 125 points (58g-67a) in 80 career collegiate games.
After the end of the 2016-17 campaign, Asselin signed a contract with the St. John's IceCaps and was assigned to the Brampton Beast. He recorded two points (1g-1a) in seven games during his time with the Beast.
Prior to his time in college, Asselin played four years in the Quebec Major Junior Hockey League for the Montreal Juniors and Chicoutimi Sagueneens. He was a prolific scorer at the junior level, recording back-to-back 30-goal seasons (35 in 2010-11 and 33 in 2011-12), while posting 70 or more points three years in a row and was named to the QMJHL's Second All-Star Team in 2010-11. Overall, he piled up 306 points (132g-174a) in 331 games.