Demonic possession through Soul Fragments and Elemental Clones with the use of Shallot's Mirror served as Eren's saving grace.
He possessed distinct advantages in both these domains, and thus, he sought to find an effective way to utilize them and resolve the dilemma he faced.
This dilemma involved the conflicting goals of exposing himself to farm Origin Force Points and maintaining secrecy. It was akin to attempting to stay in a fed and fasted state at the same time, a notion often regarded as impossible.
Of course, this dilemma wasn't something he could solve with a snap of his fingers. He needed time and a safe place.
The butcher didn't want to do anything too eye-catching before making sure that his safety was assured.
This was why he disappeared from the Practitioners' society as a whole. His identity as the bonafide Demon Slayer created an ideal environment for him to do so.
***
Eren had set his eyes on the goal: a fusion between the demonic possession and the elemental clone creation process. But how to find common grounds for them to fuse with each other?
They indeed had some commonality between them but it wasn't in Eren's favor.
This was because they were the common drawbacks.
Firstly, both of these concepts couldn't be used for long-term projects. Secondly, he could be tracked down if he used them carelessly. This was why Eren didn't use Shallot's Mirror actively when he first entered Labh Salem.
But what if these two concepts could be combined using others' bodies as vessels to create something truly groundbreaking? What if the ideas of demonic possession and Elemental Clones were integrated in a novel way to overcome the drawbacks found in both domains?
Eren had spent the last five years searching for answers to these questions. He achieved significant success in this field, finally reaping the much-needed rewards of his research from the Lazarus Project.
By investing several years into the project, Eren managed to create pseudo-avatars of himself.
He effectively utilized the research conducted in Anfang, took inspiration from Eliza's resurrection and his own way of utilizing the clones, combined it with Labh Salem's advanced knowledge and resources, and merged the two fields with the assistance of Shallot's Mirror.
**
Eren achieved a groundbreaking feat by combining the fields of demonic possession through Soul Fragments and Elemental Clones through the use of the Shallot's Mirror.
He became the first demigod who could utilize his own incarnations while still partially mortal, a concept beyond the imagination of the Immortals who had existed long before Eren's time in both timelines combined.
These clones were termed Pseudo Avatars. This was because they all came with an expiry date from the moment they were reborn inside the Echidna's Placenta, succumbing to Eren's experimental avatar creation process's disharmony.
Moreover, the Pseudo Avatars couldn't progress to the S-Rank independently. Attempting to do so would lead to their destruction by the Rankers' Calamity, a lesson Eren learned the hard way after sacrificing a powerful clone a year ago, an incident he regretted often.
However, the pseudo-avatar creation was still considered a success by Eren. He didn't mind the Pseudo Avatars' short life span as long as they helped him multitask and deceive his enemies. After all, he could create new ones from the "test subjects" he captured. The prey was there all around him.
Eren just needed to defeat worthy vessels in half-death states and catch them before bringing them to Suhaven through the use of the illegal sea route. He would then take them into his underground facility before converting them into pseudo-
avatars.
The butcher had been hard at work during these last five years. He had caught many A-Ranked entities from both factions before caging them inside Echidna'a Placenta. He would then wait for them to "hatch."
The rows upon rows of the test subjects captured inside Echidna's Placenta were the result of Eren dedicating five years to perfecting the Pseudo Avatar creation process. Some of the test subjects had been very famous or ill-famous before they were caught by Eren. Some had been sent to kill him by various factions and ended up being caught by Eren instead.
Eren caught these many test subjects because not everyone was compatible with this process of creating the pseudo avatars. Some of them couldn't survive the process while others developed many anomalies post-process. This was why the butcher would monitor the bio-stats and mental conditions of the test subjects diligently.
At this point, the success rate of creating an optimal pseudo avatar was one in a hundred. The optimal pseudo-avatar would still die within a decade or two. But it would work flawlessly before it expires.
Ever since he first created the first working pseudo avatar three years ago, Eren began using these clones as disposables, enabling him to farm Origin Force Points without care. At this point, Eren had six active pseudo-avatars doing their own deeds across Labh Salem.
These perma-clones had their own identities, memories, and goals inherited from Eren.
Some of them had become extremely famous while the others had done his bidding discreetly. The best part was that these Pseudo Avatars assumed the original owner's identity, eliminating the need for additional safety measures to protect Eren's identity.
The pseudo-avatars didn't have proximity limitations. They could go anywhere in Labh Salem without causing any form of trouble for Eren. Plus, their actions could be controlled manually using the Mesh whenever the situation really called for it.
The pseudo avatars had access to their own set of Skills apart from a few Skills Eren had. They all had their distinct Professions and Mana Signatures. They all had their own Spiritual Sense. They could adapt to various situations without exposing the location of his real body.
The pseudo-avatars could also replenish their mana reserves on their own. As such, Eren didn't have to maintain their existence by himself. It was as if he was living additional lives through the use of his perma-clones.
The pseudo-avatars were different from each other. As such, nobody could locate all of Eren's remaining clones if they managed to catch one.
The clones could be used in different ways in different settings after taking into account the identity of the original vessel and the Skills and Profession the avatar had access to for itself.
Eren couldn't impart his multi-profession capabilities and all-
element compatibility to his pseudo-clones. His vessels had a few drops of Elder Ichor's bloodline flowing through their veins. However, the vessels couldn't assimilate with the bloodline completely.
The Elder Ichor bloodline that allowed Eren to use the vessels as his pseudo avatars were also killing them slowly. As such, Eren couldn't use his bloodline powers or his Seven Sin Domains using the pseudo incarnations.
However, Eren didn't mind the trade-off.
