Mafia cannot be: Master and I, because there are two mafia night actions on the fourth night: a block on me and a visit to Ples. The Lizard can only be the main Mafia member.
We cannot be Inarus: I and Ment, because we definitely know that he placed explosives on the first night. The Lizard and Master can be Inarus.
We cannot all be Necron, because he successfully acted during these nights.
Added 2 minutes ago
Okay, yes, I could theoretically be a Loyalist who is deceiving you, but that is not your biggest problem right now.
And in general, I wouldn't be surprised if the Mafia continues to keep me in a permanent block, just so I can't use my night action to prove my innocence...
Added 3 minutes ago
Revan, is Necron's purge displayed on the target that Theodore managed to give a talisman to?
ToXAnd also, remind me, is Necron's black magic displayed if it hits a target that has Theodore's talisman? Does the talisman remain effective until the end of the night when Theodore is killed? Are players informed that they are without abilities and night actions?