Parallel Existence

Parallel Existence is a sub-Skill of certain Ultimate Skill s which allows the user to make multiple copies/replications of themselves. It is described as being similar to the Replication skill used by Rimuru and Souei, where it is impossible to tell who’s the “real” one, and no matter how many replications are defeated, the user themselves will not suffer damage. The user can continue producing replications so long as they have enough Magicules. There is no difference in physical ability between the user and their replications.

However, there are several notable advantages that Parallel Existence has over the Replication skill. Most notably, the user can divide bits of their consciousness into every copy, allowing each copy to behave completely independently and for any copy to become the users main body should their initial body die. It is like truly having multiple versions of the same person. Meanwhile, bodies created by the Replication skill require the main body control all copies through Thought Communication, and they will disappear if the main body is destroyed. All copies made through Parallel Existence can share magic power between them, so the user doesn't need to split their magic force and each copy can gain access the users full Magicule capacity - while replicas created through the Replication skill have identical bodies to the user but inferior magic power.

The more bodies the user has out, the more it reduces the maximum magic each individual one can tap. Also, if an individual body is destroyed, the Magicules that have been divided to it are depleted and cannot be recovered immediately.

History
The skill Parallel Existence is most known for its use by the Scorch Dragon Velgrynd during her attacks against Tempest during the war between Tempest/Dwargon and the Eastern Empire. It allowed her to fight all the elite forces Tempest had on the field at once while still having a copy of herself with Rudra Nam Ul Nasca to provide him protection.