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 Powers up Bug-type moves when the Pokémon's HP is low. Generation VIII Powers up Bug-type moves when the Pokémon's HP is low. Generation IX Powers up Bug-type moves when the Pokémon's HP is low.

Swarm (Japanese: むしのしらせ Bug Notification) is an Ability introduced in Generation III.

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 onward

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

In Pokémon Emerald, if the first Pokémon in the player's party has this Ability, the frequency of cries of wild Pokémon that are heard in the overworld is increased. Despite the fact this mechanic also exists in Pokémon Sun, Moon, Ultra Sun, and Ultra Moon, Swarm has no overworld effect there.

Pokémon with Swarm

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

In other games

Pokémon Mystery Dungeon series

If a Pokémon with Swarm is below 25% of its HP, the power of Bug-type moves increases by 2-times^RBTDS or 1.5-times^GtISMD.

Pokémon Conquest

In Pokémon Conquest, Swarm will increase user's Attack if the Pokémon using it is below ⅓ of its HP.

Description

Games Description MDRB Boosts the power of Bug-type moves when HP is low. MDTDS Boosts the power of the Pokémon's Bug-type moves when its HP is low. BSL ＨＰがへって ピンチになると むしタイプの わざが つよくなる Conq. Raises Attack when HP is low. MDGtI When the Pokémon's HP is low, the power of its Bug-type moves goes up.* When the Pokémon's HP is low, the power of Bug-type moves goes up!* SMD When the Pokémon's HP is low, the power of Bug-type moves goes up! MDRTDX When the Pokémon's HP is low, the power of Bug-type moves goes up.

In the anime

	Leavanny
The Pokémon's Bug-type moves become more powerful when it gets tired or weak.
Pokémon	Method
User	First Used In		Notes
Leavanny	When Leavanny becomes tired out or weak, its body becomes surrounded by a light-green aura, powering up its Bug-type moves.
Ash's Leavanny	Strong Strategy Steals the Show!		Debut

• In A Connoisseur's Revenge!, Burgundy told Ash that his Leavanny, who at the time was a Sewaddle, had Swarm as his Ability. However, he was never seen using it as a Sewaddle.

In the manga

Pokémon Adventures

• In volume 23, Blue's Scizor was revealed to have Swarm as his Ability.
• Moon's Grubbin was revealed to have Swarm as his Ability in the PokéSPedia data-book.
• Giovanni's Beedrill was revealed to have Swarm as his Ability.
• Winona's Beautifly was revealed to have Swarm as its Ability.
• Alder's Escavalier was revealed to have Swarm as its Ability.
• Emmet's Durant was revealed to have Swarm as its Ability.
• A Roughneck's Mothim was revealed to have Swarm as his Ability.
• A Scolipede controlled by Colress was revealed to have Swarm as its Ability.

Trivia

• The Japanese name for Swarm, むしのしらせ Mushi no Shirase (Bug Notification), is a Japansese expression that translates to "foreboding; premonition; gut feeling". This is reflected by the way the Ability works, as the Pokémon is preparing itself for a tough fight by making itself stronger.

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 Enxame Russian Рой Roy Spanish Enjambre Thai ฝูงแมลง Vietnamese Điềm Báo Xấu

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.