Complex sentence: Every Norris Division Final from 1982 to 1993 involved either the Blackhawks or Blues, or both teams, except for 1987, when the Detroit Red Wings faced the Toronto Maple Leafs.
Split into simpler sentences: Every Norris Division Final from 1982 to 1993 involved either the Blackhawks or Blues, or both teams. The only year that neither team was in the division final was 1987, when the Detroit Red Wings faced the Toronto Maple Leafs.