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Swarm
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むしのしらせ
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Bug Notification
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Flavor text
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Generation VI
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Powers up Bug-type moves when the Pokémon is in trouble.
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Swarm (Japanese: むしのしらせ Bug Notification) is an Ability introduced in Generation III. All Pokémon that have this Ability are Bug types.
Effect
In battle
Generations III to IV
When a Pokémon with Swarm uses a Bug-type move, the move's power will be increased by 50% if the user has less than or equal to ⅓ of its maximum HP remaining.
Generations V onwards
Instead of boosting Bug-type moves' power, Swarm now technically boosts the Pokémon's Attack or Special Attack by 50% during damage calculation if a Bug-type move is being used, resulting in effectively the same effect.
Outside of battle
From Pokémon Emerald onwards, if the Pokémon leading the party has Swarm, the chance of encountering wild Pokémon increases. In Pokémon Emerald, this Ability also increases the rate in which the cries of wild Pokémon could be heard on the field.
If a Pokémon with Swarm is below 25% of its HP, its Bug-type moves hit for double damage.
Pokémon Conquest
In Pokémon Conquest, Swarm will increase user's Attack if the Pokémon using it is below ⅓ of its HP.
Pokémon with Swarm
In the anime
Leavanny
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The Pokémon's Bug-type moves become more powerful when it gets tired or weak.
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Pokémon
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Method
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User
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First Used In
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Notes
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When Leavanny becomes tired out or weak, its body becomes surrounded by a light-green aura, powering up its Bug-type attacks.
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Ash's Leavanny
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Strong Strategy Steals the Show!
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Debut
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In the manga
In the Pokémon Adventures manga
In other languages