Swarm (Ability)

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 Generation VIII Currently unknown Generation IX 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
0015		Beedrill	Bug	Poison	Swarm	None	Sniper
0123		Scyther	Bug	Flying	Swarm	Technician	Steadfast
0165		Ledyba	Bug	Flying	Swarm	Early Bird	Rattled
0166		Ledian	Bug	Flying	Swarm	Early Bird	Iron Fist
0167		Spinarak	Bug	Poison	Swarm	Insomnia	Sniper
0168		Ariados	Bug	Poison	Swarm	Insomnia	Sniper
0212		Scizor	Bug	Steel	Swarm	Technician	Light Metal
0214		Heracross	Bug	Fighting	Swarm	Guts	Moxie
0267		Beautifly	Bug	Flying	Swarm	None	Rivalry
0313		Volbeat	Bug		Bug	Illuminate	Swarm	Prankster
0402		Kricketune	Bug		Bug	Swarm	None	Technician
0414		Mothim	Bug	Flying	Swarm	None	Tinted Lens
0540		Sewaddle	Bug	Grass	Swarm	Chlorophyll	Overcoat
0542		Leavanny	Bug	Grass	Swarm	Chlorophyll	Overcoat
0543		Venipede	Bug	Poison	Poison Point	Swarm	Speed Boost
0544		Whirlipede	Bug	Poison	Poison Point	Swarm	Speed Boost
0545		Scolipede	Bug	Poison	Poison Point	Swarm	Speed Boost
0588		Karrablast	Bug		Bug	Swarm	Shed Skin	No Guard
0589		Escavalier	Bug	Steel	Swarm	Shell Armor	Overcoat
0595		Joltik	Bug	Electric	Compound Eyes	Unnerve	Swarm
0596		Galvantula	Bug	Electric	Compound Eyes	Unnerve	Swarm
0632		Durant	Bug	Steel	Swarm	Hustle	Truant
0636		Larvesta	Bug	Fire	Flame Body	None	Swarm
0637		Volcarona	Bug	Fire	Flame Body	None	Swarm
0???	Grubbin	Grubbin	Bug		Bug	Swarm	None	Unknown
Please note that abilities marked with a superscript are only available in the stated generation or later. For Generation III and IV games, ignore Hidden Abilities.

In the anime

Leavanny
The user's Bug-type moves become more powerful when it gets tired or weak.
Pokémon	Method
User	First Used In		Notes
	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 A Connoisseur's Revenge!, Burgundy told Ash his Leavanny, then a Sewaddle, had Swarm as his Ability. However, he never used it in that form.

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 * Dutch Zwerm Finnish Parvi French Essaim German Hexaplaga Indonesian Berkerumun Italian Aiutinsetto Korean 벌레의 알림 Beolle-yi Allim Polish Rój Portuguese Brazil Enxame Portugal Enxame Russian Рой Roy Spanish Latin America Enjambre Spain Enjambre

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.