Every champion can point to an important move, whether it’s a blockbuster trade, a splashy free-agent signing or an under-the-radar pickup whose full impact is only revealed months later. Here is a look back at the biggest addition made by each of the past 31 World Series winners, since the beginning of the Wild Card Era. (This list only includes moves made during the prior offseason; crucial Trade Deadline deals are a different conversation).

2025 Dodgers: Signed LHP Blake Snell

The World Series champion 2024 Dodgers made the biggest possible offseason move (see below). The ‘25 team couldn’t match that but they were very active on the Hot Stove in pursuit of a second straight title. Not all of those moves worked, but Snell came as advertised -- at least when he was healthy. The two-

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