Ruzicka was claimed off waivers by the Coyotes from the Flames on Thursday, Randy Sportak of The Hockey News reports.
Ruzicka has three goals and nine points in 39 contests while averaging 10:10 of ice time this season. He'll likely serve primarily in a bottom-six role with the Coyotes, though Ruzicka might be a healthy scratch Thursday to give him time to meet up with the team and perhaps get into a practice with his new squad.