After Denial eSports disbanded, Lengyel and the other members of the team played together under the name "YIKES!" which was later changed to "Arc 6" after being asked by Blizzard since the logo could not be used and the name was deemed unmarketable. After qualifying, they played in Season Zero of Overwatch Contenders but were ultimately eliminated in the group stage. On July 9, 2017, Arc 6 participated in their last tournament, the Beat Invitational: Season 2 tournament, beating FNRGFE but losing to Rogue to take third place. Eventually, Arc 6 went their separate ways to focus on tryouts for Season 1 of the Overwatch League. No official statements were released by Arc 6 or Lengyel regarding his departure from the team until it was announced that he would be part of the Dallas Fuel in October.
On October 28, 2017, Overwatch League franchise Dallas Fuel announced Lengyel would be joining their roster as their 9th player. Lengyel played with the team for several matches before coming under fire due to homophobic remarks made on his Twitch stream directed against rival player Austin "Muma" Wilmot of the Houston Outlaws. Lengyel was suspended by the League for four matches and fined $2,000 for violating the Overwatch League Code of Conduct. The Dallas Fuel later extended the suspension to include the entirety of Stage 1. Lengyel made his return at the beginning of Stage 2, leading his team to victory against the Los Angeles Gladiators, and was chosen as Omen by HP's Player Of The Match. Shortly after his return to the Dallas Fuel lineup, Lengyel received a second suspension and fine for multiple social media violations and use of disparaging language towards the Overwatch League casters.
Lengyel also played for Team Canada in their 2017 Overwatch World Cup campaign. They qualified for the World Cup after beating the Netherlands by a score of 3-0. The team made it all the way to the finals of the tournament before being defeated by defending champions, South Korea. Lengyel was named the event's most valuable player.
Prior to major incidents in the Overwatch League, there were known cases of controversial acts. His account was suspended twice for violating Blizzard's Terms of Use. The first incident occurred on November 17, 2017, where Lengyel was booted mid-match from a competitive Overwatch game with a suspension message. He was suspended for 72 hours for "misuse of the reporting system". Lengyel had used the in-game reporting system for reporting players for supposedly invalid reasons. He had reported a player for refusing to switch off of a hero, even after repeatedly dying.
While streaming in December 2017, Lengyel threw a competitive game. Blizzard responded with a seven-day suspension, and Lengyel posted a video to publicly apologize for his behavior.