Maxim Lapierre and Brenden Morrow each tallied goals, with the latter's coming with 1:52 left to play to help the Western Conference-leading Blues improve to 13-3-1 since they acquired Miller, Buffalo's all-time leader in wins and games played by a goaltender, on Feb. 28.
The longtime Sabre was rested in his first encounter with his former club since the trade, with Elliott taking a shutout bid that was finally spoiled by Cody Hodgson with under a minute remaining.
Nathan Lieuwen recorded 26 saves for Buffalo in a losing cause.
2014: NFL Cheerleaders [PHOTOS]
Michael Sam cut from the Dallas Cowboys