Luna, quite literally, bore the inheritance of the Daughter of the Moon.
The Non-Luminous Moon Light assimilation was considered a perfect fit for her, but it was not a heavy or powerful assimilation when compared to others.
Between the truly formidable Organic and Inorganic Terrestrial Planetary Body Assimilation, there was also another option — the Primordial Energy Source.
Achilles himself held vast reserves of Primordial Energy, and he could use this as the point of assimilation for Luna.
This was also an opportunity for experimentation. If everything worked well for her, it was possible that he could use Primordial Energy, which coursed through the bodies of Ancient Ones, to raise his own small army of Ancient Beings.
After contemplating for a moment, Achilles made his decision.
His hand pulsed with a brilliant golden light as waves of Primordial Energy began to course through him, flowing into Luna's small body.