When a Spoink evolves into a Grumpig, the pure pink pearl on their head moves to their chest and becomes tainted with a black mist, while three smaller, yet no less darkened jewels break off like moons after a meteor impact. Some have explained this in terms of a loss of childhood innocence, while others view it as punishment for the sin committed by every Spoink, who must steal a Clamperl in order to live. Yet all agree that a Grumpig's pearls are so tainted and corrupted by the spirits of darkness which gives them their color that monks will have nothing to do with these pokemon. It is widely known that every Grumpig pearl contains a trapped spirit being punished for their sins, but few realize that the spirit trapped within is the Grumpig's own.
Even the most savage dark-types do not receive nearly the ritual shunning of these psychic-type pokemon who rarely harbor malice in their hearts. And indeed, many Grumpig dedicate their lives to good deeds simply to atone in the faint hope that their jewels will regain their color. Yet if they succeed in cleansing the darkness – a sight rarer than even a shiny pokemon – the color underneath is not the pink of a Clamperl, but the blue of the Lustrous Orb.
This is how Grumpig often seem to manipulate the very space around them. And it is written that the proper way to summon Palkia is not with the red chain with which Cyrus ripped it out of its home into our world, but by atoning with one's Grumpig until its orb is fully purified, then ascending the summit by its side.
