SCP-871 is a collection of 237 cakes. Instances of SCP-871 vary widely in appearance and size, covering the entire range of foods described by humans as "cake". The smallest observed instance of SCP-871 was a miniature cupcake with a mass of 15 grams. The largest yet observed was a 22-kilogram baumkuchen measuring 2 meters in length.
When any instance of SCP-871 is consumed by a human or a collection of humans, it is replaced approximately 24 hours afterward with a similar cake. This cake will appear on a flat surface in the vicinity of the location where the previous instance was eaten. If any of these cakes is substantially damaged through any means other than being eaten by a human, including being eaten by a non-human animal, it will be replaced instantaneously. Instances recreated in this manner maintain the schedule of the original instance. The mechanism by which instances of SCP-871 are replaced is currently unknown.
SCP-871's danger originates in the consequences of an instance not being eaten. Any instance of SCP-871 which is not consumed will cause a new cake to be created in its vicinity after 24 hours. While this is similar to its normal "replacement" behavior, the original instance will continue to exhibit the same properties, replicating if damaged and continuing to "replace" itself every 24 hours. This behavior has been observed in all cases where more than 10% of the mass of an instance remained unconsumed. As there is no known mechanism for halting SCP-871's replication, any uncontained instances could replicate exponentially, quickly becoming unmanageable. No maintainable plans for the containment of more than 20,000 instances of SCP-871 have yet been devised. It is estimated that an uncontrolled outbreak originating with a single instance would render the earth uninhabitable within 80 days.
Powers and Stats
Tier: 10-C, potentially High 6-A, potentially higher
Name: SCP-871, "The Self-Replacing Cake"
Origin: SCP Foundation
Classification: Keter Class Anomalous Object
Wielders: SCP Foundation
Attack Potency: Sub-Human, potentially Multi-Continent level (If left unchecked for 80 days it could destroy the surface of the planet), potentially higher (It would presumably not stop duplicating after then)
Speed: Below Average Human (Immobile)
Durability: Sub-Human level (That of a cake), Regeneration makes it extremely hard to destroy (It will instantly regenerate if damaged by anything besides being eaten by a human, and will regenerate after 24 hours if eaten by a human)
Range: Several meters with self-replication, potentially Planetary or higher if left unchecked
Weaknesses: Being consumed by a human will temporarily destroy it (For 24 hours)