I've said it all along.. up to now, it's almost never been the opposition beating the Oilers. It's the Oilers beating the Oilers. Be dialed in on the details right off the drop, with your passing and puck management, have good active sticks in lanes and be proactively scanning to watch for your defensive covers and boxing your guy out (without taking infractions). If they don't, they will end up down and having to claw back. If they set out to dictate play, right from the start, and take their game to them, they stand a far better chance than sitting back and simply playing reactionary, scrambly hockey.
I feel like this game will determine the winner of the series. Absolute must win, with a full commit and bellies full of competitive fire, or they'll falter and fold.