Dragons RFC scrum half Gonzalo Bertranou started for Argentina as Scotland finished the autumn series with victory over ill-disciplined Pumas at Murrayfield.
Scotland ran in eight tries in total, while home captain Jamie Ritchie and Sione Tuipulotu were sent to the bin.
Darcy Graham scored three, Tuipulotu got two, with Duhan van der Merwe, Cameron Redpath and Stuart Hogg also crossing the whitewash.
Van der Merwe and Graham scored in the immediate aftermath of a red card for Marcos Kremer as Scotland led 19-15 at half-time.
Two rapid Argentine yellow cards for Matias Alemanno and Tomas Lavanini followed Graham's second score, with Tuipulotu, who crossed for the first Scotland try, adding the fifth against 12 men.
Emiliano Boffelli had raced away to plunge under the posts during the same chaotic period, while Jeronimo de la Fuente and Alemanno struck for the visitors before the interval and Ignacio Ruiz had the final say, seven minutes into the red.