Soul

 Soul and souls it self are one of the biggest mystery in all of the multiverse as it is the thing that bound life and death for those have a body, while bodies it self are able to healed, souls is believe to not able to healed itself as some people believe alongside how the soul of a creature is the main thing that allows a creature to continue living within the body as all of the memory of the creature is stored within the soul, of course sometimes memory are lost due to a incident but the reason why and what of a truly lost memory is unknown even if such things are real, as some people believe that memory that people cannot even if they try as hard as possible to recalled are not lost but just forgotten but still within the soul but all of this are theories to what souls are and their properties but facts about it a soul is the main connection of flesh and mind it self.

Unnatural Law of 'Crime Against Creation' :

Within all of beings in the multiverse, it seem all of them knowing or most of the unknowing have the connection with a weird system which guide them to not cause the so called crime against creation, one of which is the rule of destroying, consuming a soul of a being will be counted as one but even so such things have not been proven to be an actual that a creature within the multiverse is able to do, even gods are not able to do such things.

Some believe that the Enemy of Creation from the legend of the Six Stars of Fate and the story connect to it Heroes of the Six, is a creature that is able to destroy a soul of a being that was killed by the Enemy of Creation, making the so called Enemy of Creation breaking one of the rule of Crime Against Creation but like most things related to the Calamity, this knowledge is unknown.

After Death :

A soul after their death will go the place that the soul is most connected with, as the death of the body will let the soul out and the speed that it takes for a soul to go to the place that they wanted are pretty much instant, and for the location where the souls go to is usually a place where the realm of a god or goddess have which the person during their time as the living

Souls, Lord Death, and Magic :

 A soul seem to be connected with the unknown being but also still some proof even now a day people following, the God of death it self, Lord Death but souls also allow people to tap into their arcane magic to cast magic itself the reason why and what about such matter is unknown to even expert wizards all across the realms within the multiverse it self but even so a soul is the key way for someone to access magic, making those who have the ambition to cast more powerful magic, it may be through many means but those who tries can succeed to cast higher or even first time accessing such things as magic as most people are not able to.

The connection with Lord Death and other gods and goddess with souls are unknown but it seems that Lord Death has a link with gods and goddess with some believe that the Pact of Death which is something that is also unproven about the properties of or even the existence of.

Souls & Revivify :

A soul seem to be able to return to its original body if someone was to use the magical power alongside the currently still also unknown properties of Diamond to return back someone from the damn it self, but of course such things must have some rules that allows a soul to return back from the death most of the time the reason a soul cannot return back from the death are because the person it self decided to not be back in the land of the living for their own reason but also there is other reason, the biggest known one is that a soul that is within a realm that is not able to access or something holding the soul hostage or even a soul being destroy will cause that person to not able to go back to the original body making the spell such as revivify to be useless for such situation.

The spell that allows to bring someone back cost a greater price other than the spell capability of a person, it also cost the rare mineral of diamond which people now a day still not even able to found easily in the wild with mining deeper or in area where diamonds were found even so such things are needed to bring someone back, the spells it self like Revivify or Raise Death are knowledge from a time that was forgotten by now as those spell is still not able to be dated to a specific day or years.

Undead :

 Some undead still have soul within them but those who have a soul within the undead body are usually powerful creature such as lich or powerful ghost that able to force it’s soul to stay within the realm that they have died upon and continue on without being taken by a god or goddess or even the Lord Death, even so those type of creatures are rare as most undead are just creature that does not have a soul and being raised by someone or something with the leftover energy that exist within the body of those who are dead allowing some undead to stay strong enough, but also emotion as well as memory that a soul have before it’s death making it wanting to continue on while the soul continue on but the memory and emotion stay upon into a ghost or specter.