Generation III Ability

Intimidate

Lowers opponents' Attack one stage upon entering battle.

Intimidate Effect

When this Pokémon enters battle, the opponent's Attack is lowered by one stage. In a double battle, both opponents are affected. This ability also takes effect when acquired during a battle, but will not take effect again if lost and reobtained without leaving battle. This ability has no effect on an opponent that has a Substitute. Overworld: If the first Pokémon in the party has this ability, any random encounter with a Pokémon five or more levels lower than it has a 50% chance of being skipped.

“When the Pokémon enters a battle, it intimidates opposing Pokémon and makes them cower, lowering their Attack stats.”

Intimidate Data

Introduced
Generation III
Pokémon
35
In short
Lowers opponents' Attack one stage upon entering battle.

Pokémon With Intimidate

35 Pokémon can have Intimidate.