That's not how it works. It's first to get three gate cards in their used pile who wins, not last one with Bakugan.
Um, he stated this was 4 a brawl where first to run out of useable bakugan loses. And that's how everyone plays anyway. We try to be as close to the anime as possible, just watch the 1st episode and see how it's played. Dan beats Julio by beating all his bakugan, NOT by getting 3gc.