Spiritomb

It was formed by uniting 108 spirits. It has been bound to the Odd Keystone to keep it from doing any mischief.

Exactly 108 spirits gathered to become this Pokémon. Apparently there are some ill-natured spirits in the mix.

All Spiritomb’s mischief and misdeeds compelled a traveler to use a mysterious spell to bind Spiritomb to an odd keystone.

It lays curses by thinking wicked thoughts. Writings tell that this Pokémon was born out of the assembly of five score and eight malevolent spirits.