每个夜晚，洗脑师选择一名玩家和指定一个善良身份，明天该玩家需要对“指定的身份”疯狂（表现得像这个身份），否则他可能会被说书人直接处决。
洗脑师让理发师对学者疯狂。第二天，理发师声称自己是学者，并拜访说书人， 然后并告诉其他玩家两个编造的信息。当被问及他是否疯狂时，理发师强调“不”，因此避免被处决。
死去的艺术家被洗脑师要求对“我是智者”疯狂。第二天，他没有这么做。所以艺术家被处决了，但是由于他已经死亡，所以他不会再次死亡。
洗脑师让花艺师对钟表匠疯狂。花艺师对其他玩家说，他是钟表匠，并得知恶魔离最近的爪牙距离是2，但私下告诉其他玩家他其实只是被洗脑了。说书人偷听到了，并处决了花艺师。
Madness is an infliction that can severely hinder the good team, and also a fine art - you can block a player from revealing information, force a player to change their story or double up with another good player, and even get your victim executed if they don't play along. When choosing who to make mad (and about what), think carefully about your preferred outcome!
Target players who have a lot to say. Most games will have those players who are running the show - maybe they've built up trust with other players and have some sway, or maybe they're just very sure they're right. Either way, forcing this sort of player to become mad will hinder them and their ability to coordinate with their allies... or sow seeds of doubt.
If a player is revealing a lot of important information, you can use your madness to neutralize them. The Flowergirl, Seamstress or Oracle will have a hard time revealing their game-changing info if you're forcing them to act as the Sweetheart. Track who people are listening to (publicly or privately) so you can focus on them.
One dastardly move that can really put the good team on the spot is to make them mad that they are a complicated character like the Savant, who receives a lot of information... close to the end of the game. Watching this player scramble to invent 3+ days of information is not only hilarious, but a great distraction for the good team.
When choosing who you make mad, try to be subtle or consistent. Players who are no longer mad will immediately reveal to the group that they were affected by you, and at that point on the good team will be on the lookout for loud, bold madness. A way to avoid this are to consistently choose the same player, making them mad every single day so they have no chance to reveal what you're doing to them, at the cost of restricting your movements to this one player. Another way is to pick subtle, plausible characters for your madness - for example, having someone reveal as an Outsider in a suspected Fang Gu game, or someone who has given inconsistent information reveal as a character like the Snake Charmer.
An advanced way to use madness is to build a consistent narrative. For example, you can force a player to reveal as the Sage.... but it'll lend a little credence to their forced bluff if you had them bluffing as a Dreamer the day before, just like a real Sage would. This allows you to undermine the real Sage without it necessarily coming off as just one of them being mad - the simple logical thread you have created will be something the other players find pleasing and want to hold onto. Another option for a consistent narrative is to feed into the story the evil team is trying to make - for example, if you're trying to convince them a Fang Gu is in play, make people mad they are Outsiders.
If the good team suspects that the Vortox is in play, they will be very reluctant to end the day without an execution. If they don't have any strong leads on potential evil, they may fall back to 'safe' executions - players who have used their abilities (such as the Clockmaker or Artist). Causing a more powerful character to become mad they are one of these characters can see the good team executing them without you having to lift a finger - and if they protest, they might break madness and be executed anyway!
Your ability can also affect dead players! Even if they are dead, they can still be executed should they break madness (meaning the good team does not get to execute someone of their choice instead, and the evil team gets a free night to act). If you know who your demon is going to kill, hit them with a madness about being the Barber, Sweetheart or Klutz for an extra fun distraction for the good team!
On paper, making someone mad that they are the Mutant seems like a fun trick. In reality, this madness doesn't help you - your target will be forced to reveal they are the Mutant, which obviously does nothing since they (probably) do not have the Mutant ability. The good team will know they are probably afflicted by madness, thus revealing you are in play!
Target evil players deliberately to make them look good. This has some risk associated with it since they can be executed if they don't play the madness effectively, but if the good team believes a player has been targeted by evil abilities, they'll be more likely to trust them. Just... probably warn your demon before you do it.
Your ability is obvious for the good team - madness is a very public affliction, so the good team will know you are in play pretty confidently after a few days. Keep this in mind if your evil team is bluffing that other minions are in existence; for example, in a one minion game, your demon could not have been shape-shifted by a Pit-Hag if someone died because of your madness, which will expose them as a liar!
This is an advanced tip, but a fun one: The Storyteller is the one who decides how sincere a player is when playing out a madness. This allows for some leniency for newer players, and conversely a difficulty spike for the experienced players who know the game well and understand how madness works. Targeting the latter will give you a better chance of seeing complicated and sincere madness getting played out, since more is expected of them - and it's as entertaining as it is effective!
Make sure you understand what "madness" means. If you are mad, or if you are dealing with a mad player, knowing how madness actually works is crucial. If the Cerenovus makes you mad that you are a particular character, you must do your best to convince the group that you are this particular character, or the Storyteller will execute you. Tell the group which character you are, if that character receives information, make up some information to tell the group. If another player claims to be the same character, tell the group that they are lying, because YOU are that character. Do whatever you need to do to convince the group that you are the character that the Cerenovus has made you mad about being. Am important thing to note, is that simply say "I am the Dreamer", at the beginning of the day (if the Cerenovus has made you mad that you are the Dreamer, for example, then staying quiet, will probably result in your execution. It doesn't really matter "what" you say to the group, but your tone, enthusiasm, and the strength of your arguments. If the Storyteller thinks that you are putting in a genuine effort to convince the group that you are the character that you are mad about being, then the Storyteller will almost certainly not execute you.
If you are made mad by the Cerenovus, and you don't put in the effort to convince the group that you are this new character, the Storyteller may execute you. This is sometimes acceptable, or even beneficial to your team. For example, if you are the Oracle, and have a huge amount of information to tell the group about the dead players, but haven't been able to due to being mad, it might be best to ignore the Cerenovus curse, tell the group that you are the Oracle and then tell them your information, and simply be executed as a result. Sometimes, your information is worth more than your life. Similarly, if you are not very competent at being mad, the Storyteller may execute you - this is not the end of the world. Play on, you'll have more days to find and execute the Demon.
Beware the Storyteller! When players are mad, the Storyteller will often be paying much closer attention to who is saying what. For example, if a player is publicly being mad about being the Klutz (ie. trying to the convince the group that they are the Klutz), but winks when they think the Storyteller isn't looking, or has a whispered conversation where they tell a neighbour that they are actually the Snake Charmer, if the Storyteller catches them in the act, they may be executed immediately.
Beware evil players! If you are mad that you are a different character, but you decide to secretly tell a player or two in private what your real character is (when you think that the Storyteller isn't looking), you might accidentally be talking to an evil player that snitches on you. This player, if they signal to the group, or if they tell the Storyteller directly what you have told them, can deliberately get you executed.
You think someone is mad, don't pressure them too much about their information. They may be mad, they may be lying for a different reason. But if you, and a significant number of the group, believes that the mad player is just saying what they are because they are mad, then the Storyteller may execute the player in question.
The Cerenovus can target dead people!. The citizens of Ravenswood Bluff can, and sometimes do, execute corpses. It's a weird place. If a dead player has been targeted by the Cerenovus, that player may still be executed for not being mad enough, Since only one execution can occur per day, no nominations may take place, no other player may be executed today, and the night phase will begin.
As a group, you will probably know when a Cerenovus in is play. Players may be executed at odd times. Players may tell the group that they were mad yesterday, or on previous days, which they can safely do if they are not mad any more. Pay attention to who claims to have been chosen by the Cerenovus, and backtrack with that information to get clues as to who is good and who is evil. If two people claim to have been chosen by the Cerenovus on the same previous night, then at least one of them is lying, and therefore probably evil. The Cerenovus will almost always choose good players, and will never choose the Demon (it's far too risky!) unless they have a death wish, so you can safely assume that players that have been chosen in the past are not the Demon. Keep these players alive, even if you think they might be a Minion, and focus on killing the Demon.