Non-MLB
Although they have not thrown an MLB pitch in 2024, Darwinzon Hernández threw 2,308 pitches that were tracked by the PITCHf/x system between 2019 and 2023, including pitches thrown in the MLB Regular Season and The World Baseball Classic. In 2023, they relied primarily on their Fourseam Fastball (95mph), also mixing in a Slider (84mph) and Curve (79mph).
In 2023, compared to other LHP:
Their fourseam fastball (take this with a grain of salt because they've only thrown 9 of them in 2023) has heavy sinking action, is basically never swung at and missed compared to other pitchers' fourseamers, has much less armside movement than typical and has well above average velo. Their curve (take this with a grain of salt because they've only thrown 6 of them in 2023) generates an extremely high number of swings & misses compared to other pitchers' curves, has sweeping glove-side movement, is an extreme flyball pitch compared to other pitchers' curves and is much harder than usual.