I really, really think that wouldn't clear him at all. While it's possible that both did visit hector13, there's no possible case in which TricMagic would be cult and KitRougard not, since KitRougard wouldn't have transformed into a green goo otherwise. So, if TricMagic visited hector13 and didn't target KitRougard with his mimic, then KitRougard did target hector13 and is also a cultist.
Yes, that's my point. If Tric is lynched and flips as cult, then Kit is also cult and we can lynch him tomorrow. If Tric flips as town then Kit is also likely town, or at least not cult.
Plus if we can agree on who the most likely person to be scum is (since I'm not comfortable counting King as definite scum) then I can at least shoot that person tonight, which I can't do for black goos.
Oh, I see now. I thought that by "clear" you meant to say clear him as town. If he flips cult, then that means KitRougard is also part of the cult. I'm not exactly comfortable leaving a potential scum with a kill alive, though. If we lynch one of the suspected cultists and scum kills, then that would leave, in the worst case possible, 1 cultists, 1 scum and 2 town alive (or even less depending on if Deus also decides to kill) This would almost certainly end with town losing, unless we get very, very lucky.
In the other hand, if we lynch the scum, we would stop the kill, leaving us with 3 townies and 2 cultists. Then it would be an easy win since the cultists can't use any actions because of being green goo. Which is why I would prefer that Superdorf, who is probably the nightkiller, lynched or killed. The cultists aren't priority now that we know there is someone with a night kill.
By the way, I don't think the black goo ability is passed to the cultists by reading the role's description, so it's safe to try to kill one of them during the night and lynch the other. It wouldn't really matter to be turned into green goo in the last night if that would end the game in a town win. Another thing we could try is to target Deus with our night abilities, since he's kill immune, so he confirms our roles by seeing which abilities he gets during the night. That would be safer than, say, claiming in the thread so the killer knows who to target during the night.