Mynio was drafted in the third round of the 2023 NHL Entry Draft (89th overall) by Vancouver and has signed a three-year, entry-level contract worth $2.85 Million ($870,000 AAV). The 18-year-old defensemen had five goals, 26 assists, 40 PIMs and a +50 plus/minus through 68 games with Seattle (WHL) in 2022-23. He is expected to return to Seattle for the 2023-24 season.