With Anaheim's Jakob Silfverberg in the penalty box for delay of game, defenseman Shea Theodore passed the puck to Stone in the right face-off circle. Stone faked a shot, drawing Gibson from his crease, and passed to Karlsson in the left circle for a shot into an open net.
"[The power play] hasn't been going real well for the last six weeks, but they're moving the puck better and we've been working on it a lot," Vegas coach Gerard Gallant said. "Obviously, Stone makes a great pass."
Tuch made it 2-0 at 18:13 of the second period when he scored his first goal in 15 games dating to Jan. 21.
Jonathan Marchessault intercepted a pass by Daniel Sprong with the rest of the Ducks changing, and Marchessault made a long stretch pass to Tuch, who held off Anaheim rookie defenseman Brendan Guhle before backhanding the puck through Gibson's pads from in close.
"It felt pretty big for me," Tuch said. "At times, when you're not scoring over a long stretch of games, you get a little down on yourself, but I just wanted to come in and backcheck hard, forecheck even harder, and do what it takes for my team to win."