SCP-682, also known as the "Hard-to-Destroy Reptile" is a Keter-class (Extremely Dangerous) creature held captive within the SCP Foundation. It is a large reptilian beast with a desire to destroy all life because it shows hatred to all life on earth and the universe. SCP-682 is immune to all forms of damage; even black holes, false vacuums and gods can't kill him. The foundation tries to terminate 682 from multiple dangerous SCP anomalies (some are not) like SCP-999, SCP-096, and SCP-173.
His true name is speculated to Atanti-ql-Paneu, one of the Leviathan-spawn of the infamous eldritch god known as the Scarlet King.