Like so many other pokémon, volbeat seemed to have a counterpart, the other side of the coin.
In this case it was almost a copy except for the color scheme. The illumise that appeared donned mostly tones of purple and was more feminine than the previous adversary.
Kirlia attacked with “confusion” and finished the battle promptly.
Illumise began evaporating, its glowing orbs of energy equal to so many others.