Butler was placed on waivers by the Red Wings on Tuesday, per James Mirtle of The Athletic.
Butler was one of six players that were placed on waivers by Detroit on Tuesday. The 24-year-old winger appeared in 16 regular-season games with AHL Iowa last season, where he scored a goal and recorded 13 shots on net. If he clears waivers, he'll likely be optioned to AHL Grand Rapids ahead of his first season as a member of Detroit's organization.