Burakovksy nearly buried his second goal of the game as he took on Vasilevskiy on a breakaway with less than a minute left in the game, but his low wrist shot was kicked out by the Tampa goalie.
The Avs cushioned their lead up to 5-0 heading into the final 20 minutes of play as Nichushkin scored his second goal of the game and Helm also found the back of the net.
Just 4:51 into the frame, Colorado executed a solid forechecking effort behind Tampa Bay's goal to chip the puck loose. From below the goal line, Rantanen grabbed the loose puck along the boards and dished it back into the slot to Nichushkin. The Russian winger wired his shot past Vasilevskiy's glove to extend the Avalanche's lead to 4-0.
Late in the frame, Colorado kept the momentum going and forced another counter attack over the Lightning. Logan O'Connor sprung Helm up ice, who turned on the jets and skated into the left faceoff circle. Despite pressure from Tampa Bay's Anthony Cirelli and Victor Hedman, Helm picked his spot and beat Vasilevskiy over his glove to further Colorado's lead 5-0 at 16:26.