 On March 31, 2016, he tied a career high with 24 points off the bench in a 101–95 loss to the New Orleans Pelicans.On July 9, 2016, Arthur again re-signed with the Nuggets.On July 13, 2018, Arthur was traded, along with Kenneth Faried, a protected 2019 first round draft pick and a 2020 second round draft pick, to the Brooklyn Nets in exchange for Isaiah Whitehead.