If his passive becomes his power move, he is no longer 5* IMHO. He should maintain 5* status and capability. I don't have him, but we don't want to neuter him either. I like that a character has his passive. Cool to have that in the game.
Makes it frustrating for those that don't have him, but prior to the last update we only had a small issue based on pairing him with other offensive passives. I didn't mind going against Prisoners in general, prior to the update. Now some characters/toons that were effective counters to him have reduced effectiveness, he is now more OP then ever.
Trying to balance it though so he's not 6*, but also not 4*.