The NHL’s first American team won the hearts of New England sports fans with rosters built around some of the best defensemen of all time. Today, they take aim at one more title with the best first line in hockey. Here’s a look at the 20 cards that best represent the hobby history of this legendary franchise. 1. 1966-67 Topps USA Test #35 Bobby Orr This isn’t just the key card of hockey’s greatest player – yes, that’s a hill I’ll die on – it’s arguably the most important and desirable card in the hockey hobby outside of Wayne Gretzky’s…