The Bruins took a 1-0 lead on Acciari's second goal of the season at 5:31 of the first period. Defenseman Brandon Carlo took a slap shot from just above the left face-off circle that Acciari tipped from just in front of the crease.
"It was a great shot," Acciari said. "I was in the right place at the right time. We thrive on getting pucks back and getting to the net. So it was nice to get rewarded."
The Bruins went on the first power play of the game when Rickard Rakell was called for holding Patrice Bergeron at 4:58 of the second period, and DeBrusk scored nine seconds later for a 2-0 lead.
David Krejci skated the puck toward the Anaheim net as Boyle came toward him, then stick-handled around Boyle before the puck slid off his blade and into the crease, where DeBrusk tapped it across the goal line at 5:07 for his second goal in two games.
"It's been awhile since I've had a little bit of a streak," he said. "Two games isn't really much, but it's just nice to help the team out on the road against Anaheim."
The Ducks had back-to-back power plays in the second, but they didn't have a shot on goal on the first and Halak made four saves on the second.
"Our power play has to execute better," Murray said. "They have to work harder to get the puck back after they get a chance. It's just one and out. That's not good enough."
Wagner scored into an empty net with 1:31 left to make it 3-0, securing the win in the first of a season-long five-game road trip for Boston.
"It's obviously something that you focus on that you want to do, start on the right foot," DeBrusk said. "Tonight was a pretty good game for us. Obviously, we got the win and certain guys stepped up big for us. It was a team effort, so it was just nice to be a part of that."