Aberg to a two-year, $1.3 million contract worth $650,000 annually. During his time with the Predators', he was given the nickname "The Pope". Edmonton Oilers In the 2017–18 season, at the NHL trade deadline on 25 February 2018, Åberg was dealt by the Predators to the Edmonton Oilers in exchange for Mark Letestu. He made his Oilers debut on 27 February against the San Jose Sharks. He scored his first point as an Oiler in his debut with an assist on a goal from Jesse Puljujärvi, in a 5–2 loss to the Sharks. In remaining with the Oilers to play out the season, Åberg contributed with 2 goals and 8 points in 16 games. Anaheim Ducks After attending the Oilers 2018 training camp, Åberg was unable to retain his roster spot approaching the 2018–19 season. On 1 October 2018, he was claimed off waivers by the Anaheim Ducks. He made his debut with the Ducks in an opening night 5–2 victory over the San Jose Sharks on 3 October 2018. After a brief stint with AHL affiliate, the San Diego Gulls, Åberg returned to the Ducks scoring two goals in consecutive games on 28 and 30 October against the Sharks and Philadelphia Flyers. Through 37 games with the Ducks, Åberg had already eclipsed career highs offensively, placing second on the team with 11 goals and recording 19 points before he was relegated as a healthy scratch through a franchise record losing streak. Minnesota Wild On 16 January 2019, Åberg's tenure with the Ducks ended as he was dealt to the Minnesota Wild in exchange for Justin Kloos. Åberg was unable to replicate his offensive pace with the Wild, remaining on the roster through the conclusion of the regular season to post 1 goal and 6 points in 22 games. On 25 June 2019, Åberg was not tendered a qualifying offer by the Wild, releasing him to free agency. Toronto Maple Leafs On 24 July 2019, Åberg signed as a free agent to a one-year, $700,000 deal with the Toronto Maple Leafs. In the 2019–20 season, Åberg was primarily assigned to AHL affiliate, the Toronto Marlies. He was productive with the Marlies, registering 20 goals and 44 points in 55 games, while making just 5 appearances with the Maple Leafs adding 1 assist. With the remainder of the AHL season cancelled due to the COVID-19 pandemic, Åberg as an impending restricted