He’s not really a power forward, as I understand it. More of a sniper.
That's pretty accurate.
He's not really the fore-checking machine or defensive stalwart that the scouting report above makes him out to be. He lacks polish defensively, but is generally aware and willing. That side of his game should progress as he matures. He should be an asset in the defensive zone when it's all said and done.
He favors a small man's game when fore-checking, as in he is more prone to using his reach and anticipation to win pucks over engaging physically and out-muscling people. He's not afraid of contact, he's just trying to win pucks with skill instead of separating people from pucks with his size. He is able to come away with the puck a reasonable amount of the time, however.
Along those lines, he's not afraid to go to the middle, but posting up in front of the net like Anders Lee isn't really his game. He is more dangerous facing the net.
He's slender, but there's plenty of room on his frame and time to add size. As he does, he might become a more physical player, but it doesn't seem like his natural instinct so I wouldn't count on it.
He does use his size well when shielding the puck. His hands are pretty soft, but not as fast as you'll find on a true plus stickhandler. He can make a nice move to beat someone on the rush or off the wall, but he's not going to be dancing much in traffic. Good enough vision and hands to play with top 6 quality players as a complimentary piece. Passing is generally good, but not overly creative. Better at creating his own chances than generating them for others, but he could develop into a dangerous finisher for someone who is.
He's capable of transitioning the puck from zone-to-zone himself, and can make the reads and touch passes needed to be a good transition player. It's not the best part of his game, but it's not a liability, either. He didn't have a chance to show off a lot of that in the bottom six role he played with the Blues, but the underlying skills are there. Dump and chase is not his preferred game, but he'll do it if that's what's asked of him.
Tough to tell because his line was generally tasked with playing a simple game, but his puck management was generally pretty good for someone his age just breaking into the NHL. He wasn't over-handling pucks at the lines, or coughing up pucks in traffic.
The best asset is his shot. It's hard, and he has a good release with a variety of legitimate shot options at his disposal. Good enough to score from the tops of the circles and to be a legitimate threat as a triggerman on the left side of a PP. Seems able to find space at the NHL level. A willing shooter. Not the sort that's going to pass up too many shots if he's in a position to score.
He's obviously more dangerous when playing with talented setup men, but he was able to look dangerous enough even with bottom six players in a limited role that I'm pretty comfortable saying he can be a useful player there as well once his game rounds out.
His floor is pretty high at this point, IMO, and he has a second line ceiling as a complimentary sniper if it all comes together. Seems like a pretty reasonable bet to be a middle-six sort of player, especially if you're ok with a dash of skill over sandpaper for that role. I'd be surprised if he didn't have a meaningful NHL career of some sort. The tools and IQ are there.
Blues had thoughts about transitioning him to center. He did take a lot of faceoffs in college and do well there, but he has played wing exclusively otherwise save for about a month and a half in the AHL (after which he was moved back to wing). I see him as a winger, personally.
Hope that all helps give you a starting point for your own evaluations moving forward.