I find Tomoyuki Sugano fascinating. Even by outlier standards he appears to be an extreme outlier.
He's currently sporting a 3.07 ERA through 10 starts(58.2IP) despite an almost impossibly low 4.91 K/9. His peripherals are still saying he has overperformed but they're becoming far more reasonable then they were even a few weeks ago. He's sporting a 4.82 FIP, 4.46 xFIP, and 4.36 xERA. According to baseball savant he's doing a very good job of limiting hard contact, his off speed offerings are elite and induce a lot of chases. We've seen pitchers be fip beaters like our own Kyle Hendricks, but Sugano seems, at least so far, to be in a world of his own in that regard.