Tolvanen is a crafty little forward who has excellent top end speed and acceleration. The Vihti, Finland native is strong on his skates and isn't afraid to drive the net when he has a step on the opposing defence. He has a quick, accurate and hard release on his shot that he is able to use while in full stride. His ability to control the puck and move it with speed is what separates him from other prospects.
Most 18-year-old draft prospects will have to work on their defensive game as they progress up the ladder, but Tolvanen is already noticeably effective in his own zone. Reading the play and getting his stick into passing lanes, and then transitioning with the puck quickly. Like any draft eligible player, he will need to add strength, but that will come naturally as he gets older.
One thing that stands out about Tolvanen's game is that he shoots a lot. His 4.73 shots per game were first in the entire USHL by a sizeable margin. He never went a game without a shot on net and had 11 contests with 7 or more shots on goal, which included a game with 11 shots and another with 12 shots.
If you compare Tolvanen against the USHL draft eligible forwards, the difference between him and remainder of the class, it provides quite the contrast: