The checking forward was placed on waivers by the Maple Leafs on Wednesday to make room for Auston Matthews and Nicolas Roy, who were both activated from the injured reserve.
Jacob Quillan was also reassigned to the AHL’s Toronto Marlies.
Blais, 29, was claimed off waivers by the Maple Leafs from the Canadiens in October. He has one goal and three points in eight games this year.
In other waivers news, New York Rangers forward Juuso Parssinen cleared waivers and was assigned to the AHL.
The Maple Leafs will welcome Matthews, Roy and Matthew Knies back to the lineup as they visit the Columbus Blue Jackets on Wednesday. Puck drop is at 7 p.m. ET/ 4 p.m. PT on Sportsnet and Sportsnet+.
