Gagnon was one of the better shooters throughout the entirety of camp, scoring a couple of goals in impressive fashion throughout. He’s a tall and lanky forward who possess great power in his stride, making him a handful to take on when he’s attacking in a straight-line and forcing defenders back on their heels. He showed a good understanding of spacing in his attacking method from time to time, often driving the middle of the ice and allowing defenders to converge on him before executing a drop pass to a linemate up high who could then operate in open ice. Gagnon was at his most dangerous when he received a puck at full speed and had the adequate space to fire a shot off while in motion. The accuracy and velocity he possesses while moving at top speed allowed him to be a threat from outside the slot, sometimes overpowering goaltenders and picking his spots from a distance.

Gagnon had himself a productive Cross Border Challenge, finishing with 6 points in 4 games and proving difficult to contain with the puck on his stick attacking downhill. Some of his best moments came while he was attacking in a straight-line off the rush, often pushing back defender and using his size and reach to hold onto pucks as he set up play in the offensive zone. He was quite difficult to contain around the perimeter as well, using stop and starts to freeze defenders before exploding from a standstill to work his way into space. He also helped facilitate a few controlled entries in transition by scanning prior to reception and connecting on one touch feeds that hit teammates in stride and allowed them to attack into the zone with speed.