[10] He was also named WHL player of the month for November, for scoring 16 goals and 28 points in 11 games.

"In the following 2016–17 season, Rattie made the Blues opening night roster out of training camp.

[14] On July 1, 2017, Rattie signed a one-year, two-way contract with the Edmonton Oilers after he was not tendered a qualifying offer from the Blues.

[18] He joined former Oilers executive and newly installed head coach Craig MacTavish in signing a one-year contract abroad with Russian club, Lokomotiv Yaroslavl of the KHL, on July 10, 2019.

[19] In the 2019–20 season, Rattie made a slow transition to the KHL, collecting 3 goals through his first 16 games.

With the dismissal Craig McTavish as head coach, Rattie soon left Lokomotiv as he was traded to Torpedo Nizhny Novgorod on October 29, 2019.