1) Yes. The class attributes are a reward for trusting the Landlord, so they are required to drink them in order to have their event specific powers.
2) Non-event participants do not have their powers nulled and shall be unaffected, and can participate in the event as is. The monster portion of the event is not closed off to those unwilling to drink the liquid or just in general: there are ways that everyone can be involved in the event if they so wish.
3) Yes, this is also possible. There will be posts with NPC monster interactions, but I am not adverse to other posts or logs containing player controlled monsters with their own prompts. The opening monster posts will contain information about their size, power, number, etc. so it's possible to be informed enough to go your own way where the monsters are concerned.
Re: QUESTIONS
2) Non-event participants do not have their powers nulled and shall be unaffected, and can participate in the event as is. The monster portion of the event is not closed off to those unwilling to drink the liquid or just in general: there are ways that everyone can be involved in the event if they so wish.
3) Yes, this is also possible. There will be posts with NPC monster interactions, but I am not adverse to other posts or logs containing player controlled monsters with their own prompts. The opening monster posts will contain information about their size, power, number, etc. so it's possible to be informed enough to go your own way where the monsters are concerned.