SCP Foundation

SCP-2921 is a crucifix that is made out of human bones. It has the letters HELL where the INRI would be. It was found in [DATA EXPUNGED] in the city of Jerusleum. No proof of how it got there was found, but some of the doctors say it was from [DATA REDACTED].

SCP-2921 containment procedures: SCP-2921 must be stored in a cooling chamber that is exactly -28.2 degrees fahrenheit. The cooling chamber must be made out of non-conductive materials such as wood, plastic, and glass. It cannot be in contact of any organism. Please see Ammendum for more information.

AMMENDUM: If it gets in contact, the organism will start go shove SCP-2921 inside of its chest and start to morph into a creature made out of [DATA REDACTED] and what to appears to be [DATA EXPUNGED], and becomes SCP-2921-1. SCP-2921-1 starts to speak in a language not yet discovered on this planet. SCP-2921-1 will start drawing energy from any area around it.

Experiment A: A D-class personell is exposed to SCP-2921. After 3 seconds, the personell picks SCP-2921 up and starts stabbing himself in the heart and morphs into SCP-2921-1.

That's all I have for now! Will keep updated!

Hello!

You'll definitely want a sandbox to take this idea and work on it there as you build it out. Full drafts aren't allowed in the forums (but this isn't a full draft, anyway). Anyway, some thoughts on what you have:

No proof of how it got there was found, but some of the doctors say it was from [DATA REDACTED].

This is the sort of thing that won't go over well. First off, "some of the doctors say" is speculation, and that has no place in a technical document. Furthermore, what do they say? [DATA REDACTED]. That… could be anything. It doesn't carry any sense of foreboding or any emotion whatsoever. So, even if you clean up this to something more professional sounding, this sentence really has no business being there. I recommend reading over Clinical Tone Declassified and Zen and the Art of DATA EXPUNGED. The lessons there will help you with this and future ideas, as well.

Also, it's an addendum, not an "ammendum." Ideally, the addendum should be part of the Description, and not added after the fact.

Regarding the idea for itself, there's not much to it yet. What's the idea behind the item? It's a thing that if you touch it, you die and become a monster (which is completely undefined, and once again, carries no sense of foreboding yet). Why does it need to be kept at exactly -33.4 degrees Celsius (also, don't use Fahrenheit, the Foundation is strictly metric)?

What is the monster and why do we care? Why would there be an English word on an artifact found in Jerusalem (and why replace the Latin abbreviation of IESUS NAZARENUS REX IUDEORUM with a single word)? Why is it made of human bones, and since it's a crucifix and not a cross, what is the Jesus-figure made of? How large is it?

It's a lot to think about, but it's what you do in order to come up with an object that is internally consistent. It's all part of the development process.