On December 2, 2019, the Marlins traded Lucas to the Baltimore Orioles for Jonathan Villar.[5] Lucas did not play in a game in 2020 due to the cancellation of the minor league season because of the COVID-19 pandemic.[6] He returned to action in 2021, and spent the season with the High–A Aberdeen IronBirds. In 27 appearances, Lucas logged a 3.96 ERA with 50 strikeouts and one save across 38+2⁄3 innings of work.[7]
Lucas spent all of the 2022 season with the Double–A Bowie Baysox, recording a 4.76 ERA with 65 strikeouts in 56+2⁄3 innings across 32 contests.[8] He returned to Bowie to begin the 2023 season. On May 19, 2023, while with the Baysox, Lucas, Chayce McDermott, and Nolan Hoffman threw a combined no-hitter against the Altoona Curve.[9] On June 5, the Orioles promoted him to the Triple-A Norfolk Tides.[10] In 20 combined games for Bowie and Norfolk, he registered a 2.73 ERA with 37 strikeouts and one save in 29+2⁄3 innings pitched.[11]
Oakland Athletics
On July 19, 2023, the Orioles traded Lucas to the Oakland Athletics in exchange for Shintaro Fujinami.[12] In 15 appearances for the Triple-A Las Vegas Aviators, he recorded a 5.63 ERA with 13 strikeouts in 16 innings pitched. On September 6, Lucas was selected to the 40-man roster and promoted to the major leagues for the first time.[13] He made his major league debut on September 8. He made six appearances for Oakland, struggling to an 8.10 ERA with seven strikeouts in 6+2⁄3 innings of work. Following the season on November 6, Lucas was removed from the 40–man roster and sent outright to Triple–A Las Vegas.[14]
On May 8, 2024, the Athletics selected Lucas' contract, adding him to their major league roster.[15] In three appearances for the Athletics, he struggled to a 14.73 ERA with six strikeouts across 3+2⁄3 innings pitched. On May 16, Lucas was designated for assignment following the acquisition of Brandon Bielak.[16]
Detroit Tigers
On May 18, 2024, Lucas was claimed off waivers by the Detroit Tigers.[17] The Tigers sent him to the Triple-A Toledo Mud Hens. The team promoted Lucas to the major leagues on June 25,[18] but optioned him back to Toledo the next day without making a major league appearance.[19] After appearing in three games for the Tigers in July, Lucas was designated for assignment on August 16.[20]