Inspired by a masterclass from Sabrina Frederick-Traub, the Brisbane Lions have kept their AFLW Grand Final dreams alive by thrashing the GWS Giants by 40 points at Blacktown International Sportspark tonight. 

To make the grand final the Lions need to have a higher percentage than the loser of Bulldogs v Melbourne (a Bulldogs victory would be more favourable), and for Collingwood to defeat or draw with Adelaide.

Sabrina Frederick-Traub kicked four goals and Jess Wuetschner three as the Lions scored a 10.4 (64) to 3.6 (24) win at Blacktown International Sportspark on Friday.

Down 7-0 early, the Lions slammed on the next seven goals, with six of them in the first quarter.

Brisbane kicked the highest score in its history, booting more than six goals in a game for the first time.

The win lifted Brisbane to second place on 16 points, level with pacesetters Western Bulldogs and Melbourne, who clash on Saturday.

The big win moved Brisbane ahead of Melbourne on percentage.

The loss ended a four-match unbeaten streak for GWS, who went into the game third, two spots ahead of Brisbane.

There was no inkling of the Lions' first-quarter onslaught in the first few minutes, with Britt Tully kicking the opening goal for the home team.

However, Frederick-Traub and Wuetschner cut the Giants' defence to shreds.

The Lions' penetrating kicking into the forward 50 was too slick for the Giants, who were too sloppy when in possession.

The Giants stemmed the tide after the first quarter, but Brisbane kicked the only goal of the second and third terms to extend its lead.

"There was some things that we wanted to do forward of centre in terms of moving the ball quickly and it was just one of those freakish quarters where most things go right," Lions' coach Craig Starcevich said.

"People having shots from pockets and they are going in and all sorts of things, a lot of things went right early."

Courtney Gum kicked a goal for GWS in the opening minute of the last quarter to briefly revive the home fans' hopes.

But the Giants couldn't get the deficit below four goals and Brisbane booted the last two majors to boost its percentage.

GREATER WESTERN SYDNEY     1.1     1.3     3.5     3.6        (24)

BRISBANE                                   6.2     7.3     8.4     10.4     (64)  

GOALS
Greater Western Sydney: Tully, Gum, Staunton
Brisbane: Frederick-Traub 4, Wuetschner 3, Conway, McCarthy, Webb

BEST
Greater Western Sydney: Eva, Farrugia, Bennetts, Dal Pos, Tully, Swanson
Brisbane: Frederick-Traub, Anderson, Bates, Zielke, Wuetschner, Lutkins

INJURIES
Greater Western Sydney: Nil
Brisbane: Nil

Reports: Nil

Umpires: Howorth, McGinness, Crosby

Official crowd: 2253 at Blacktown International Sportspark