The Leafs first line should not be split up unless it is because of an injury. Barring Matthews and Marner forgetting how to score again, the Leafs have the best top line in the Eastern Conference going into the playoffs.
Auston Matthews is on the verge of hitting 60 goals and will likely win both the Rocket and Hart trophies, while also being one of the best two-way forwards in hockey.
Mitch Marner has a different kind of magic to him. His playmaking is still elite, he's great on the penalty kill, and he is now a shooting threat as well. Meanwhile,
Michael Bunting has broken out in a big way. The Scarborough native is at 60 points on the season and if you thought he was a pest in the regular season - just wait until the whistles are put away in the playoffs. The Leafs' top line should be kept together at all costs.