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Swarm (Ability)

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Swarm むしのしらせ
Bug Notification
Flavor text
Generation III
Ups Bug moves in a pinch.
Generation IV
Powers up Bug-type moves in a pinch.
Generation V
Powers up Bug-type moves in a pinch.
Generation VI
Powers up Bug-type moves when the Pokémon is in trouble.
Generation VII
Currently unknown

Swarm (Japanese: むしのしらせ Bug Notification) is an Ability introduced in Generation III. Twenty-five Pokémon can have this Ability, all of which 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.

Pokémon Mystery Dungeon series

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

# Pokémon Types First Ability Second Ability Hidden Ability
Beedrill Beedrill Bug Poison Swarm None Sniper
Scyther Scyther Bug Flying Swarm Technician Steadfast
Ledyba Ledyba Bug Flying Swarm Early Bird Rattled
Ledian Ledian Bug Flying Swarm Early Bird Iron Fist
Spinarak Spinarak Bug Poison Swarm Insomnia Sniper
Ariados Ariados Bug Poison Swarm Insomnia Sniper
Scizor Scizor Bug Steel Swarm Technician Light Metal
Heracross Heracross Bug Fighting Swarm Guts Moxie
Beautifly Beautifly Bug Flying Swarm None Rivalry
Volbeat Volbeat Bug Bug Illuminate Swarm Prankster
Kricketune Kricketune Bug Bug Swarm None Technician
Mothim Mothim Bug Flying Swarm None Tinted Lens
Sewaddle Sewaddle Bug Grass Swarm Chlorophyll Overcoat
Leavanny Leavanny Bug Grass Swarm Chlorophyll Overcoat
Venipede Venipede Bug Poison Poison Point Swarm Speed Boost
Whirlipede Whirlipede Bug Poison Poison Point Swarm Speed Boost
Scolipede Scolipede Bug Poison Poison Point Swarm Speed Boost
Karrablast Karrablast Bug Bug Swarm Shed Skin No Guard
Escavalier Escavalier Bug Steel Swarm Shell Armor Overcoat
Joltik Joltik Bug Electric Compound Eyes Unnerve Swarm
Galvantula Galvantula Bug Electric Compound Eyes Unnerve Swarm
Durant Durant Bug Steel Swarm Hustle Truant
Larvesta Larvesta Bug Fire Flame Body None Swarm
Volcarona Volcarona Bug Fire Flame Body None Swarm
Grubbin Grubbin Bug Bug Swarm None Unknown
Please note that this is only 100% accurate to Generation VI games.
  • For Generation III games, ignore Abilities introduced in Generation IV or later and Hidden Abilities.
  • For Generation IV games, ignore Hidden Abilities.
  • For Generation V games, ignore Abilities introduced in Generation VI.

In the anime

None.png Ash Leavanny Swarm.png None.png None.png
Leavanny
The user's Bug-type moves become more powerful when it gets tired or weak.
Pokémon Method
User First Used In Notes
542 Leavanny When Leavanny becomes tired out or weak, its body becomes surrounded by a light-green aura, powering up its Bug-type attacks.
Ash's Leavanny Strong Strategy Steals the Show! Debut

In the manga

In the Pokémon Adventures manga

In other languages

Language Title
Chinese Cantonese 蟲之預感 Chùhng-jī Yuhgám *
預感 Yuhgám *
Mandarin 蟲之預感 / 虫之预感 Chóng-zhī Yùgǎn *
預感 Yùgǎn *
The Netherlands Flag.png Dutch Zwerm
Finland Flag.png Finnish Parvi
France Flag.png French Essaim
Germany Flag.png German Hexaplaga
Indonesia Flag.png Indonesian Berkerumun
Italy Flag.png Italian Aiutinsetto
South Korea Flag.png Korean 벌레의 알림 Beolle-yi Allim
Poland Flag.png Polish Rój
Portuguese Brazil Flag.png Brazil Enxame
Portugal Flag.png Portugal Enxame
Russia Flag.png Russian Рой Roy
Spanish CELAC Flag.png Latin America Enjambre
Spain Flag.png Spain Enjambre


Variations of the Ability Overgrow
OvergrowBlazeTorrentSwarm

Project Moves and Abilities logo.png This article is part of Project Moves and Abilities, a Bulbapedia project that aims to write comprehensive articles on two related aspects of the Pokémon games.