SCP-055 there are three main problem with having the profile.
First we only know that it causes people to forget about it in verse this resulted in the keter class because they don't know what is going on with it this leads to the fact we don't know what it is or what it can do other than make you forget for example it has Information Manipulation, Technology Manipulation and Data Manipulation because it prevents the memory of records involving it but that doesn't really prove it is manipulating them directly it could be for numerous other reasons.
Second its AP section is misleading we don't know if it's powers don't focus on destruction because we can't learn of it's other powers same with standard equipment it says none but that can't confirmed we can't even be sure if the character format is the correct format for SCP-055.
Third, it's memory manipulation isn't even combat applicable it only kicks in after you stop looking at it and we don't know if it is passive, how it works, or it's potency in numbers.
So to clarify all stats are unknown, it's most of its abilities are unknown, the correct format for it is unknown, and how the one thing that we know about it works is unknown and not applicable to combat.
I guess there is one more thing extended canon you see we already have that key on a different profile
Aaron Siegal (SCP Foundation) and generally speaking we don't use stuff that contradicts what is in use for SCP extended canon meaning there is no real point in making it another extended canon tab rather than using the preexisting one.