Has an AFL game ever ended 84-10?
Exactly once. On September 5, 1908, Fitzroy beat Melbourne 84-10, and no AFL game before or since has ended that way. When it happened it was a scorigami, the first 84-10 in league history.
That makes 84-10 the 3836th most common final score out of 6,607 that have ever occurred in AFL. One point away, 85-10 has happened never and 84-11 has happened never.