Weak Armor (ability)

Effect

When a Pokémon with Weak Armor is hit by a physical move, its Defense drops one stage, but its Speed increases by one stage.

Stats can be raised to a maximum of +6 stages each, or lowered to a minimum of -6 stages each.

Game descriptions

Black/White Black 2/White 2	Physical attacks lower Defense and raise Speed.
X/Y O.Ruby/A.Sapphire	Physical attacks lower its Defense stat and raise its Speed stat.
Sun/Moon Ultra Sun/Ultra Moon	Physical attacks to the Pokémon lower its Defense stat but sharply raise its Speed stat.
Sword/Shield B.Diamond/S.Pearl	Physical attacks to the Pokémon lower its Defense stat but sharply raise its Speed stat.
Scarlet/Violet	The Pokémon’s Defense stat is lowered when it takes damage from physical moves, but its Speed stat is sharply boosted.

Other languages

English	Weak Armor
Japanese	くだけるよろい (Kudakeru Yoroi)
German	Bruchrüstung
French	Armurouillée
Italian	Sottilguscio
Spanish	Armadura Frágil
Korean	깨어진갑옷
Chinese (Simplified)	碎裂铠甲
Chinese (Traditional)	碎裂鎧甲

Pokémon with Weak Armor

#	Name	2^nd ability	Hidden ability
0222	Corsola Galarian Corsola	—	Cursed Body
0524	Roggenrola	Sturdy	Sand Force
0525	Boldore	Sturdy	Sand Force
0569	Garbodor	Stench	Aftermath
0854	Sinistea	—	Cursed Body
0855	Polteageist	—	Cursed Body
0864	Cursola	—	Perish Body

Weak Armor as a hidden ability

#	Name	Other abilities
0095	Onix	Rock Head Sturdy
0138	Omanyte	Swift Swim Shell Armor
0139	Omastar	Swift Swim Shell Armor
0140	Kabuto	Swift Swim Battle Armor
0141	Kabutops	Swift Swim Battle Armor
0218	Slugma	Magma Armor Flame Body
0219	Magcargo	Magma Armor Flame Body
0227	Skarmory	Keen Eye Sturdy
0557	Dwebble	Sturdy Shell Armor
0558	Crustle	Sturdy Shell Armor
0582	Vanillite	Ice Body Snow Cloak
0583	Vanillish	Ice Body Snow Cloak
0584	Vanilluxe	Ice Body Snow Warning
0629	Vullaby	Big Pecks Overcoat
0630	Mandibuzz	Big Pecks Overcoat
0936	Armarouge	Flash Fire
0937	Ceruledge	Flash Fire