McRae, 24, spent the 2013-14 season in Finland with Tappara Tampere and Espoo Blues, totaling eight goals and 13 assists foro 21 points in 53 games.
Previously, the 6-foot-2, 200-pound forward McRae played three seasons in the St. Louis organization, amassing 42 goals and 41 assists for 83 points in 162 AHL games with Peoria. McRae also had one goal and two assists in 15 games with the Blues, all in 2010-11.
The son of former NHL’er Basil McRae, Phil was originally drafted by St. Louis in the second round, 33rd overall, of the 2008 NHL Entry Draft.
Regner, 25, dressed in 63 games with the Chicago Wolves last season, ranking third among team defensemen with 24 points (three goals, 21 assists). He also led the defense with six points (two goals, four assists) in nine postseason games.
Overall, the 6-foot, 190-pound Regner has played 317 AHL games with Chicago, Peoria, Springfield and Syracuse, notching 113 points (18 goals, 95 assists).
The Westlock, Alta., native was originally drafted by Columbus in the fifth round, 137th overall, of the 2008 NHL Entry Draft.