Has an AFL game ever ended 84-54?
Yes. AFL has seen a final score of 84-54 3 times. It first happened on September 2, 1905, when Essendon beat St Kilda, and most recently on June 13, 1959, when North Melbourne beat Hawthorn.
That makes 84-54 the 1534th most common final score out of 6,607 that have ever occurred in AFL. One point away, 85-54 has happened 3 times and 84-55 has happened 1 times. At one point the score disappeared for 54 years, between 1905 and 1959.