The Buffalo Sabres came into the NHL as part of the league’s expansion from 12 to 14 in 1970, and they quickly proved their worth.
On the strength of the "French Connection" line (Gilbert Perreault, Rick Martin, and Rene Robert), the Sabres made it to the 1975 Stanley Cup Finals, though lost to Philadelphia. Buffalo remained a good, though not necessarily great squad for years, and upon the emergence of Czech Goalie Dominic Hasek, made it to the Finals again in 1999, though a controversial call cost them the Cup against Dallas.
The Sabres have not been to the Finals since.
This list is up to the end of the 2020/21 season.
Note: Hockey lists are based on an amalgamation of tenure, traditional statistics, advanced statistics, playoff statistics, and post-season accolades.