McDavid scored with 0.8 seconds left in the period to put Edmonton up 2-0.
"It was obviously not our best effort last night, and I thought our group was really solid tonight," McDavid said. "We came out with a lot of energy, it seemed like we had a just a little more juice than they did, but that happens in a back-to-back. Our power play was good, our [penalty kill] was good, and 5-on-5 I thought we did a pretty good job as well."
Nate Schmidt scored his first goal with the Canucks to make it 2-1 at 3:24 of the second period with a slap shot from the left point through traffic.
McDavid scored on the power play at 8:26 to make it 3-1. He skated the puck into the zone down the right side with speed, cut inside against defenseman Alexander Edler, and shot from the right hash marks.
"I thought they came out a lot harder than we did to start the game," Schmidt said. "They put us back on our toes early. We have to get used to this, you play the same team on back-to-back nights in their own building, and it's going to happen. You know, you're going to get a better effort out of them after we come in and win Game 1 in these miniseries that we're going to be having all year."
Tyler Motte scored at 10:21 to make it 3-2, redirecting a pass from the point from Travis Hamonic.