Chicago Cubs
Justin Steele has thrown 6,318 pitches that have been tracked by the PITCHf/x system between 2021 and 2024, all of them occuring in the MLB Regular Season. In 2024, they have relied primarily on their Cutter (92mph) and Slider (83mph), also mixing in a Sinker (92mph). He also rarely throws a Curve (80mph) and Change (87mph).
In 2024, compared to other LHP:
Their cutter is thrown at a speed that's borderline unfair, results in more flyballs compared to other pitchers' cutters and has strong cutting action. Their slider (take this with a grain of salt because they've only thrown 18 of them in 2024) sweeps across the zone and has some two-plane movement.