: Universe Level  (Can create and destroy entire realities just to spite Talloran. Created SCP-2432-Prime, of which is an entire universe parallel to ours. Caused  ZK-class end-of-reality scenario, destroying The Universe), possibly  Multiverse Level  (It is heavily implied that SCP-3999s destruction effected not just a singular reality but the entire Multiverse, of which is stated to be infinite. This is evident by the fact Talloran states I refuse to believe the only thing left in the entire multiverse is your stupidity.