Just completed series and the site says it took 0s
But I like the result of it.
Also, looks like the time of completing in the milestones is incorrect (or at least weird) for some series. For the following series, the time is in times bigger then period during which the series was available. But I completed them by opening packs.
Though, if I remember right, I traded out some singles from these series and then got them back.
P.S.: Why I have nothing here, although I have all the cards and never trade them?