New Oilers coach Ken Hitchcock said there's a lot to like about Chiasson's game, including a willingness to get into, and stay in, scoring areas around the net.
"If you look at the goals he's scored, he's not panicking when most people do panic," Hitchcock said. "But he's also on a line that can control the puck. He's a perfect example of goals coming from possession time. We've been in the zone a long time, space becomes available, he ends up open at the net because people are tired defending.
"He's a guy that's willing to go to the front of the net and stay there, take a hit, take a beating and still hang in there to try to get his stick on the puck. You've got to really appreciate that."
Paul MacLean, who coached Chiasson with the Senators in 2014-15, said Chiasson has a strong combination of strength and skill.
"He had tons of courage to take the puck to the net and he had a light touch around the net," MacLean said. "It didn't always go in, but the big thing was that this was a big-bodied guy (6-foot-4, 208 pounds) who was not afraid to go to the net.
"Sometimes I know he struggled with footspeed up and down the ice, but he would make up for that by being able to get pucks out along the wall in the defensive zone, be very responsible. So those two things were important parts for me and he was a positive guy in our group."
MacLean said that Chiasson's move to a line with McDavid, though it may appear a mismatch of speed, can work.
"Getting to (the right place) at the right time is always the hardest thing," he said. "Playing with McDavid, he can hang onto the puck and that will give Alex the time to be in the right place. Who he plays with is very important, so with those type of players (McDavid and Draisaitl), he doesn't have to hang onto the puck, he just has to get to the right places to be successful."
The unexpectedness of his success this season is something that fuels Chiasson, whose previous career-high of 13 goals came with the Stars in 79 games in 2013-14.
"I'm just going a day at a time here," he said. "I know I have a bigger role this year that maybe a lot of people didn't anticipate at the start of the year, but I like that as a player."