For those not familiar with the full SCP verse, the story of SCP 5000 tells of a time where the Foundation, for reasons that are never made explicitly clear, declared war on the entire human race by releasing every monster, nightmare and anomaly in containment below that of reality warpers with the intent of exterminating the human race without destroying the planet itself.
My question is, in a reality where such monsters are running loose, what is the weakest character in fiction that would have a better than fair chance of surviving the end of the world as we know it with everything that the SCP Foundation has ever encountered now set loose.
Remember, nothing from the Foundation's archives that could potentially destroy the entire planet.