Warble!
It was an item/power wherein the user condensed their entire existence into an unbreakable Darble form. Even if their physical body dies for whatever reason, as long as the Warble was placed on the forehead of a living being, by consuming the target's body, the user would return.
The user would be able to control the age of their physical body during their return. As a result, it was a perfect disguise.
Eugene was a middle-aged man. But if he so desired, he could place his Warble on the forehead of some cattle and be reborn. While doing so, he could fix his age, whether it be to appear as a middle-aged man, an old man nearing the end of his lifespan, a teenager, or even a child.
He could appear at any point in his lifespan. Just the fact that he could revive through Warble opened the doors to all sorts of possibilities, with eternal life being just one of them.
