Kase's NHL negotiating rights were acquired by Carolina from Philadelphia on Wednesday in exchange for Massimo Rizzo and a 2025 fifth-round draft pick.
Kase inked a two-year contract with HC Sparta Prague (Czech Republic).
Kase was demoted to AHL Lehigh Valley on Monday.
Kase was reassigned to the taxi squad Monday, CapFriendly reports.
Kase was recalled from the taxi squad Sunday but did not suit up against the Bruins, CBS Sports reports.
Kase was promoted to the active roster Thursday.
Kase was recalled from AHL Lehigh Valley to the taxi squad Monday, Tony Androckitis of Inside AHL Hockey reports.
Kase will start the 2020-21 season on loan with Czech club HC Karlovy Vary
The Flyers reassigned Kase to AHL Lehigh Valley on Sunday, Jordan Hall of NBC Sports Philadelphia reports.
Kase was called up from AHL Lehigh Valley on Thursday.