Blizzard announced this earlier today. Nine game wins, and the skin’s yours, with some other rewards along the way, like sprays and icons. I’m on my fourth hiatus from Overwatch since other players make my blood boil, but I gotta admit, this skin is a convincing case to return.
I do wonder why he’s different from 75974. Maybe it was an animation or scale problem.
You have until September 30th to grab this skin. Right around when the annual Halloween event starts, too.