Ethymology:
Plasmoice is a combination of “Plasma” and “Voice”.

Definition:
They are known for being a rare specimen of “pseudo-ghost”.

The name is given to a “entity” or a group of “entities” that are invisible to the naked eye but they are heard by everyone. I mean, these entities can talk and express their opinions and everybody who is present around them can heard them, but they can’t see them.

These “invisible creatures” are created through a huge mix of DNA and magic from a foreign being into someone else’s body. The foreign magic and DNA gets merged with that someone else’s own magic and DNA, creating them.

Keywords:
The resident is the person who has the plasmoice, and the foreign are the persons which magic were taken from.

Characteristics:
1- They have their own mentality, even if they do heard the resident’s mind, they can think on their own without the resident hearing their thoughts.

2- They can create weapons or defense shields according to the foreign’s magic and the resident’s magic, without permission of the latter.

3- Everyone can heard them, they are invisible but you can guess where they are just because the resident, involuntarily, move their eyes to the direction of the voices’ sound.

4- They have physical body only when the resident is asleep, meanwhile the resident is in that state, the Plasmoice roam around the place that they are in, so when the resident is up and the Plasmoice are back into being “invisible”, the resident has the full map of the place in their mind.

5- The resident, in some cases, can replicate the foreign’s behavior or personality, as well as some likes/dislikes. Example: A vegetarian person with Plasmoice. If one of the foreign is fan of meat, the resident will have one of the Plasmoice being fan of meat and as a result, the resident will start liking meat.

6- Plasmoice could be from 1 to 6 entities.

7- They look like the foreign but with certain aspects of the residents, like clothing style, sometimes the clothing is the same as the foreign but the colors are different, their behavior in fact are partially different from the foreign. Example: If the foreign is a murderer, the Plasmoice will have a little desire to kill but it will not be THAT strong as the foreign.

8- They could be separated from the resident and obtain a full physical form but that will result with their death if they don’t get an exact replica of the resident’s DNA or soul. This fact is tied up to the 11's fact.

9- The Plasmoice will always be in the resident’s side, they would never have a good relationship with the foreigns. If they do, that’s because the resident asked them.

10- If the resident is a young adult or adult: From two months til two years, there is a small lapse of time where the resident gets powerless and the plasmoice are blocked somehow, that could happen randomly between that time and at the end of the “blocked” stage, the resident themselves gets their powers back and the merged magic creates an energy that switches to a form of a baby. It usually takes the resident or the Plasmoice’s appearance.

11- Plasmoice have 3 stages of strength, protectiveness, power and being capable of getting defeat. Remembering the fact 8, this fact depends on their stage.

Stages:
This means that they can change in the "versions" in which they are presented.

What are these stages or versions?
They are 'levels' of how powerful they are and how protective they are.

There are 3 stages or versions:
+ Plasmoice Stage 1 or Plasmoice 1.0: They are very powerful but can be defeated with twice the effort. Their level of protection is high, but never exceeding the extreme levels, they are almost always at the limit of normal and a little moderate.

At this level, the Plasmoice do not have good friendship with each other, nor do they support their counterparts (who would be the foreign beings who gave the magic) but only because of the person where they reside, they can try to create good relations of friendship.

In addition, Plasmoice 1.0 can become partial physicists if the body where they reside is asleep or they can become permanent physicists if the soul of the body where they reside is divided without killing it and if an exact replica of that soul can be obtained to serve as a replacement and Plasmoice get their physical form.

+ Plasmoice Stage 2 or Plasmoice 2.0: Its power is greater than those of version 1.0. It is not easy to defeat them, almost three or four times more power is required. Their level of protection is greater, between moderate and almost severe, they are too petty in terms of the resident's socialization.
They are more intelligent and rational than 1.0, they know special torture techniques against their "enemies", causing confusion and sometimes even psychological trauma.

They can become visible in two ways, in addition to the same as Plasmoice 1.0: The first, is in a miniature physical form, and the second, is causing the resident to go to sleep-awake. In both cases, the Plasmoice gain greater independence and can feed regardless of what the resident eats.

I.E.: Dream eats a cookie, his Plasmoices eat a sandwich.

Note: Sleep-awake mode is a magic spell/trick making the person to keep their eyes closed and their mind focused on the "dreamland", but their senses are aware of everything that is happening in their surroundings, like screams, touches. Some sciencists on ReCode nickname this mode also as "blind-person mode" instead of "sleep-awake".

+ Plasmoice Stage 3 or Plasmoice 3.0: They are very, but very much more dangerous, powerful and almost impossible to defeat, I say almost, it is super impossible. They have an overprotection exceeding the limits of severe and almost reaching the extreme limit.

They hate with all their strength anyone who approaches the resident, does not care if they are children or adults, they hate that someone is close. Their goal is to kill their counterparts to "take their place as better versions." By doing the aforementioned, they obtain the "name" of their counterparts, but if the resident manages to convince them to not kill their counterparts, the Plasmoice will seek other methods of obtaining the names of their counterparts, since, as I said, their objective is to be better versions than their counterparts and to love the resident with all their being.

They have the ability to become visible or invisible at their own will, no matter if the resident is asleep, awake, unconscious or semi-awake, they are free to become physically visible.
In addition, contrary to versions 1.0 and 2.0, Plasmoice 3.0 can touch anything and not simply the resident, even in invisible mode.

How to obtain a Plasmoice: There are two ways.

1- Under attack: If the foreign (one or more) attack the resident, then the latter will obtain the Plasmoice due to the magic (and partially DNA) getting inside the wounds. The resident have 12 hours to clean up their wounds before the Plasmoice are formed. Once cleaned, Plasmoice will never appear, but otherwise, they will appear.

2- Transfusion. This is why when someone makes it, uses a "Plasmoice blocker" in order to prevent this.

But, Swap!ReCode always saw the Plasmoice as a "myth" and something not real, therefor never used that blocker.

Resuming: The Plasmoice are pretty much considered a “counterpart version” of the foreign. They have as well a little bit of childish behavior just to make everything either enjoyable or weirder.