Beads of Ruin
The power of the Pokémon's ruinous beads lowers the Sp. Def stats of all Pokémon except itself.
Pokémon with this ability1 Pokémon
FAQ
What does Beads of Ruin do?
The power of the Pokémon's ruinous beads lowers the Sp. Def stats of all Pokémon except itself.
Which Pokémon have Beads of Ruin?
1 Pokémon have it, e.g. Chi-Yu.