Piercing Drill
When the Pokémon uses contact moves, it can hit even targets that are protecting themselves.
Full effect
When the Pokémon uses contact moves, it can hit even targets that are protecting themselves, dealing 1/4 of the damage that the move would otherwise deal. Everything aside from the target's protective effects is still triggered.
In-game description
When the Pokémon uses contact moves, it can hit even targets that are protecting themselves, dealing 1/4 of the damage that the move would otherwise deal. Everything aside from the target's protective effects is still triggered.