announced on November 20, 2018 that Rogue would be one of ten franchise partners participating in the newly rebranded League of Legends European Championship. For the 2019 LEC Spring Split, Rogue signed Kim "Profit" Jun-hyung, Mateusz "Kikis" Szkudlarek, Chres "Sencux" Laursen, Martin "HeaQ" Kordmaa and Kim "Wadid" Bae-in. On December 21, 2019, Rogue announced a partnership with Polish esports organization x-kom AGO in the Ultraliga, with Rogue remaining responsible for the team itself and x-kom AGO responsible for "establish a training presence in Warsaw and a dedicated marketing approach."
On August 24, 2017 Rogue signed the former roster of Vertical Gaming: John "Avian" Ackerly, Tyler "Ecl9pse" McMullin, George "KingGeorge" Kassa, Spencer "Slashug" Oliver, Austin "Yung" Trexler, and Tristan "Ranger" Perhson. Four days later, Yung left Rogue to return to Continuum; he was replaced with Bryan "Bryan" Agema on September 12. Kevin "Easilyy" Skokowski joined on December 22 after KingGeorge benched himself and eventually left due to family issues. On March 19, 2018, Emilio "Geo" Leynez Cuevas joined the team to replace Avian. On September 3, Geo and Bryan both left Rogue and were later replaced by Aaron "Shuttle" Dugger and Seth "supr" Hoffman, though supr would leave two months later. Franklyn "VertcL" Cordero replaced Supr on November 28, three days after the latter left. Rogue finished first at Dreamhack Valencia 2019 and qualified for the Six Major Raleigh 2019. At the Six Major 2019, Rogue placed ninth to twelfth after defeating Cyclops Athlete Gaming while losing to Team Secret twice in the group stage. After disappointing results at the Six Major Raleigh 2019, Ranger left the team and was replaced by the team's analyst, Eric "Reaper" Nohl. Taylor "Redeemer" Mayeur, an ex-Spacestation Gaming player, joined the team as a coach on October 9, 2019. After the team was relegated to Challenger League, Ecl9pse, VertcL, and Slashug all left and joined different teams and causing the disbanding of the team. This left Rogue without a spot in Challenger League due to the rule requiring 3/5 players to retain a spot. Shortly after though, on January 6, 2020, Rogue announced their buy out of the Vodafone Giants roster and the release of the remaining members of the North American roster. The buy out of the new roster had given them a spot in the European Rainbow 6Pro League Season XI and the Six Invitational 2020. The team placed last at the Six Invitational 2020 after losing to Natus Vincere and eventual champions, Spacestation Gaming.
