it's absolutly necessary IMO to nerf them so that only the first hit procs or not, where's the fun then the guys always freezes 2/4 or 3/4 of the team? that's absurd, and i feel that some chars are more broken than others. so the gunner golden son is more broken then the assassin or the possessed multihit rockets i feel. cannot prove this, but it seems so.
totally agree with this...
To the prisoner:
the prisoner is okay, i wouldn't nerf him the only problem is that his passive cannot be counterd. so we need a way to counter him.
it would be enough to add the passive to some more characters, that would do the job. even a corrupt ox cultist would be great with this passive, so
maybe that would be a good option. the prisoner would stay as powerfull as he is but the other team would have have the chance to block passives as well.
OR: change the prisoner, so that he also removes passives of the own team.... that would be probably easy to do and would also be an option. if you want to use this guy, you also have no passives...