Ability Reference · Gen III
Swarm
Strengthens Bug moves to inflict 1.5× damage at 1/3 max HP or less.
Full effect
When this Pokémon has 1/3 or less of its HP remaining, its Bug-type moves inflict 1.5× as much regular damage. Overworld: If the lead Pokémon has this ability, the wild encounter rate is increased.
In-game description
Powers up Bug-type moves when the Pokémon's HP is low.
Stats
GenerationGen III
Total species31
Regular ability27
Hidden ability4
Regular ability (27 Pokémon)
No. 0015 Beedrill 
No. 0123 Scyther 
No. 0165 Ledyba 
No. 0166 Ledian 
No. 0167 Spinarak 
No. 0168 Ariados 
No. 0212 Scizor 
No. 0214 Heracross 
No. 0267 Beautifly 
No. 0313 Volbeat 
No. 0402 Kricketune 
No. 0414 Mothim 
No. 0540 Sewaddle 
No. 0542 Leavanny 
No. 0543 Venipede 
No. 0544 Whirlipede 
No. 0545 Scolipede 
No. 0588 Karrablast 
No. 0589 Escavalier 
No. 0632 Durant 
No. 0736 Grubbin 
No. 0824 Blipbug 
No. 0825 Dottler 
No. 0826 Orbeetle 
No. 0900 Kleavor 
No. 0919 Nymble 
No. 0920 Lokix Hidden ability (4 Pokémon)
Only available through specific encounters (Dynamax Adventures, Tera Raids, hidden grottoes, etc.).
