He played center his first two years and has switched to right wing this year, not left wing. The line is Oksanen-Eichel-O'Regan.
There is no doubt that he's benefited from playing on a line with Eichel. However, he's got plenty of skill himself. He was a ~PPG player his freshman year, but struggled last year on that trainwreck of a team. I see his future in the NHL (if there is one) at the wing considering his size.
He's equally adept at passing and shooting, it depends upon which role he's being asked to fill. He's been a goalscorer this year because everyone is paying attention to Eichel and O'Regan/Oksanen have been finishing Eichel's passes. His freshman year when he was at center he was asked to be the playmaker, and played that role well. He knows where to be on the ice and is a smart player. Doesn't bring much in terms of physical play or the defensive side of the puck.