The concept of imprinting new skills on living things using the Nullmancer exclusive skill, [Wealth of Spoils]...
After Replicus realised that the skill only worked with objects, he had had to get creative. Barring what he knew of the influence of the soul – however limited it was – he began to dive deeper into his knowledge of the body.
The body naturally had the capacity to learn, but [Wealth of Spoils] seemed to refuse to grant abilities to living bodies, which forced the Penetrator to go back to his roots.
In Deadmanland, and even Aigas, it was common for one to develop skills through the process of repeating a certain motion. This was how his best friend Bonet had awakened [Boneman of Steel] in Deadmanland, and this was how Skullius had learned skills like [Mana Sense], [Mana Force] and [Artless Dodger].
This process, seemed to be one of the universal concepts that applies to living bodies in general, even if they were technically 'dead'.