Ple-Sen
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I understand your point. Let's eliminate the Shaman. I'm 100% sure the Cop isn't the Mafia. The Man used his own ultimate ability, and the Orc's ultimate would have looked different (at least, that's my impression). And I'm not saying the Cop couldn't be the Mafia. But if he is the Mafia, then the chances of the Orc being the main host for Kenkael seem doubtful to me.