Competition best and fairest Kate Child took home best on ground honours as she stamped her claim on the league's strongest player with a consistent showing all around Invermay Park.
The Bulldogs didn't have it all their own way in the opening quarter as their semi-final conquerors burst out of the blocks, claiming the opening goal through a miraculous snap from diminutive forward Katherine Richardson and holding play within their attacking 50.
Kate Greaves ensured South went went into the first break only a point behind with a classy tackle claiming holding the ball before slotting through a major after the siren.
Elsewhere in Sport
A 50-metre penalty to Molly Cornish gifted Scottsdale a seven-point lead but South were able to kick it up another gear following a period of end-to-end play as Kee Mansell and Child kicked back-to-back goals to set up an intriguing last quarter.
With the third quarter often described as the 'premiership' one, the Bulldogs kicked the lone major as pocket rocket Charrae Myers burst through a pack to secure an 11-point lead, putting pressure on the Magpies.
South's victory was all but sealed following a Child and Kiara Foley combination with the league's leading goal-kicker running onto a long bomb from her assistant coach to extend the lead and sink Scottsdale's hopes.
A Magpies fightback almost began to look ominous as Jess Casey slotted through her first for the day with four minutes to go but it was a mere consolation as the Bulldogs finished off a near-perfect season with the inaugural flag.
Co-captain Abbi Dean and Hannah Viney joined Child, Foley and Greaves as standouts for the premiers as Scottsdale captain Letitia Johnston, half-back Ruby Slater and Mikayla Binns all fought hard for the defeated side.
While you're with us, did you know that you can now sign up to receive breaking news updates direct to your inbox? Sign up here.
Subscriptions are available here.