It was Leksand who took the lead through the new Czech acquisition Tereza Radova.
The goal was neat as she finally put the puck in after working with 19-year-old Ella Albinsson.
In the second period, Swedish national team player Felizia Wikner-Zienkiewicz carefully picked up the puck in front of the goal and equalized for Brynäs.
But at the beginning of the third period, Leksand regained the lead after Brynäs fumbled with the puck.
Hanna Sköld intercepted it and got free with goalkeeper Felicia Frank.
But Brynäs didn't give up then either.
Big star Lara Stalder luckily found Alena Mills, who equalized to make it 2-2.
The match went to extra time and Radova was sent off for tripping.
Brynäs and Stalder took advantage of that, which made it 3-2.