Karlsson is far from the elite game-breaker he was in his prime, but the glimpses he's shown over the past few years suggest he can still be useful in the right situation, with the right group around him.
The Maple Leafs would have to move out some money to make such an addition work, likely requiring a trade that takes Morgan Rielly's $7.5-million cap hit off the books.
Still, in the wake of the club losing one of its most prolific playmakers in Mitch Marner, the Leafs' current roster seems in need of more creative, dynamic skill. Perhaps Karlsson presents a short-term solution.