Karlsson scored his 16th goal of the season Friday, extending his point streak to four games in a win over Buffalo. Karlsson has now hit the 50-point mark and is leading all defensemen in scoring. With a whopping 226 shots on goal, you really can't do much better in terms of fantasy blueliners. The 24-year-old is playing a key role for a surging Senators team that is now within three points of a playoff spot.