Quote Originally Posted by Sparton_LOTB View Post
The Passive Disable is a negative status effect that tries to apply at the start of the Prisoner's team's turn. Immunity counts down it's duration at the start of the turn of the team the character is on. Therefore, under normal circumstances, when Immunity's duration runs out (or it is stolen/removed), you won't immediately get a Passive Disable status effect, because the timing of that rarely coincides with when Immunity will be going away.
This explanation brings back flashbacks of reading the MTG rule book haha