The Zürcher Schlittschuh Club Lions (ZSC Lions) are a professional ice hockey team located in Zürich, Switzerland, playing in the National League (NL).
He was selected by the San Jose Sharks, 142nd overall, in the 2015 NHL Entry Draft. Balcers played three seasons playing for the Stavanger Oilers before moving to North America in 2016, where he spent one season with the Kamloops Blazers of the major junior Western Hockey League (WHL). After one season in the American Hockey League (AHL with the Sharks minor league affiliate San Jose Barracuda, Balcers was traded to the Senators in 2018, and made his NHL debut with the team in 2019. He rejoined the Sharks in 2021.