Jason Blake scored the tiebreaking goal from behind the St. Louis net with 5:54 to play, and the Ducks rallied from a third-period deficit.
St. Louis has won two straight in the series and a 3-1 victory over Anaheim on March 8 is part of the club’s current 10-2-1 surge.
Patrik Berglund scored the go-ahead goal in the third period and Jaroslav Halak made 24 saves for his career-high seventh straight win to lead the Blues to a 3-1 victory over the Anaheim Ducks.
Francois Beauchemin, Corey Perry and Bobby Ryan scored during a 4:23 span of the third period, and the Anaheim Ducks beat the St. Louis Blues 4-2 on Sunday night.
Oystrick hadn’t scored an NHL goal since the 2008-09 season with Atlanta, but his score seemed to snap the Ducks out of a funk.
The Blues recalled forwards Chris Porter and Ryan Reaves from Peoria and placed forward Philip McRae on Injured Reserve.
Newcomers Stewart & Shattenkirk get points.
Ryan scored twice in the first period and completed his third career hat trick 30 seconds into the third. Ryan later scored his career-best fourth point with an assist on All-Star pick Corey Perry’s score during Anaheim’s four-goal third period.