After falling into an early 6-2 hole, the Mystics reeled off a streak of quality execution, going on a 10-3 run to take the lead. Their shooting duo of Bailey Mes and Maria Tutaia went 14 minutes without missing a shot, and built on that in the second quarter as they battled their way into a 34-32 halftime lead.
Hampering the Steel's progress was a non-contact injury to captain Wendy Frew. Frew hobbled off and was in a moon boot and on crutches post-match, putting her availability for Silver Ferns trials - and a potential international recall - in serious doubt.
With goal attack Te Paea Selby-Rickit also only playing half the encounter, the Steel's depth was tested, but they responded superbly.
A rampant 21-12 third quarter gave the Steel the ascendancy as they turned up the defensive pressure. Their swarming defence - and some poor Mystics passing - caused eight Mystics turnovers, and the Steel converted six of them into goals.
A 9-2 run to close out the quarter gave the Steel a seven goal lead with a quarter remaining, and they pulled away from there. A 26-12 final quarter turned the game into a rout, with unstoppable goal shoot Jhaniele Fowler-Reid finishing with 65 goals.
The New South Wales Institute of Sport claimed third place, beating the Central Pulse 48-46 in a game overshadowed by a similarly serious-looking knee injury to Pulse shooter Catherine Tuivaiti.