SCP-1440 - An elderly human male of unknown origin who, by his very presence, inadvertently causes the destruction of any objects, entities, or phenomena tied to the concept of “humanity”. SCP-836 - An unidentified substance that manifests and grows within various materials used in constructi...
SCP-3125 is described as an extremely large Θ'-dimensional highly violent and hostile abnormal metastasized meme complex, an amalgamation of memes and antimemes, originating from SCP-5800, the Fifth Dimension where living concepts feast on lesser ones in order to increase their powers and is part...