She-Ra: Princess of Power (1985)
S2E26 Shades of Orko
The Rebels successfully fend off an assault from the Shadow Beasties with the help of Man-At-Arms' innovative electric force shields. Enraged by their defeat, Shadow Weaver captures Orko's shadow and brings it to Horror Hall. However, the captured shadow soon breaks free, causing chaos as it escapes into the world.