Per 
Special Containment Procedures: SCP-XXXX is contained at Site-145 in an enlarged containment unit that measures 8,000-square-foot constructed out from tungsten and is to be monitored at all times. Additionally, SCP-XXXX can only have some books for researching all kinds of aquatic animals. All personnel is to inspect SCP-XXXX's containment unit and the anomaly every 8 hours per day. Any personnel that scored under 80/100 for cognitohazarous influences are absolutely forbidden not to come near the SCP-XXXX containment unit, including the anomaly.
Description: SCP-XXXX is a massive non-corporeal, latent reality-altering, half-reptilian, and half-aquatic-like humanoid entity with the upper body an alligator and the lower body of an octopus estimated to be 122 m (400 ft) tall. It was observed to have extremely decisive strength, agility, very durable, and can run up to 44.748 km/h - 123.48 km/h on land and go on the speed of [REDACTED] while underwater or in orbit. SCP-XXXX is shown to be immune to physical damages, seemingly capable of alterings its body size and shape, has an apparent absorption, and have a powerful energy wave that creates a 50-meter circular area capable of disrupting technology and a latent mind-affecting ability that stayed active to those who comes near it within the range of 30 meter-circular area. Tests have proven that this anomaly acquired bodies of random individuals with a weak human spirit, resulting in it manifesting into the minds and souls of those individuals in an attempt to take over their body. According to what it is known, SCP-XXXX was formerly known as a teenaged boy named "John Lukas," an American high-schooler who dreamed of becoming a marine biologist.
Addendum-XXXX-01: Discovery
SCP-XXXX was first discovered when a group of fishermen reported that there was an enlarged sea-like creature beneath the depths of the oceans. The Foundation has dispatched MTF. However, every time whenever they arrived, SCP-XXXX apparently disappeared, the Foundation keeps on tracking the anomaly, but all of their technologies can't seem to locate the whereabouts of the entity. However, the Foundation has lost ten years to locate the entity. Until one day, reports were claiming from the survivors of a ship-wreck saying that they were rescue by something that is enlarged and described that it looks like an alligator, and an octopus, as this was brought in the Foundation immediately.
