The Wizards are 6th in scoring and 6th in 3-point shots attempted per game. They're 22nd in fast break points so they prefer to walk it up and launch from deep. They're 11th in 3-point percentage so they probably shouldn't be shooting it quite that much.
They're 25th in points allowed per game (118.1). If the Cavs do not let them get comfortable from the 3-point line they have a good shot at a win.
Bradley Beal is averaging 27 ppg and nobody else is over 14, so we know who to focus on defensively. However, they have six guys other than Beal averaging in double figures - all between 11.1 and 13.6 ppg. Very balanced scoring after Beal. They're averaging nearly 26 assists per game so they do a nice job moving the ball and sharing the wealth. They're taking nearly 37 3's per game and hitting 35.5%.
The Cavs are coming off a 113-point game against the Celtics, who have a far better defense than the Wizards (12 points a game better, to be precise). So I expect the Cavs to score a lot, although being on the road tends to suppress their scoring a bit.