Pick the players on each side of a trade and Trade Lab grades it for every team involved, from two to five teams. You do not need to import a league: the analyzer builds typical teams for your scoring and roster settings and shows how the same trade lands on a contender, a bubble team and a long shot. Values blend several public trade charts and the grades also weigh projected lineups, so a trade that looks even on paper can still show a clear winner. It works for redraft and dynasty, 1QB and superflex.