Adding the right player at the NHL trade deadline can make all the difference for teams looking to win the Stanley Cup. Sometimes moves don't pan out—Jarome Iginla to the Pittsburgh Penguins in 2013 comes to mind.
But other times, they propel contenders to another level. We're talking Mark Recchi to the Carolina Hurricanes in 2006. Ray Bourque to the Colorado Avalanche in 2000.
What the Tampa Bay Lightning did over the last two deadlines was a more recent masterclass in how to add the right pieces to an already outstanding group of players.