Harden Details Level Up TM Move Tutor Egg Move
Gen IX Dex Gen VIII Dex Gen VII Dex Gen VI Dex Gen V Dex
Gen IV Dex Gen III Dex Gen II Dex Gen I Dex

Attack Name Battle Type Contest Type
Harden
Power Points Base Power Accuracy
30 0 0
Battle Effect:
Stiffens the body's muscles to raise DEFENSE.
Secondary Effect:
Raises user's DEFENSE one stage.
Effect Rate:
-- %
TM # Appeal Points Jam Points
None
Contest Effect:
Can avoid being startled by others once.
BrightPowder King's Rock Physical Contact
No No No
Battle Palace Style Battle Arena Pokémon Hit in Battle
Defense +0 User
Picture Example of Harden

Pokémon That Learn Harden By Level Up in Ruby/Sapphire/Emerald/Colosseum/XD:

No. Pic Name Type 1 Type 2
#011Metapod
#011Metapod
#014Kakuna
#014Kakuna
#088Grimer
#089Muk
#089Muk
#095Onix
#098Krabby
#099Kingler
#120Staryu
#127Pinsir
#140Kabuto
#141Kabutops
#207Gligar
#208Steelix
#211Qwilfish
#218Slugma
#219Magcargo
#222Corsola
#266Silcoon
#266Silcoon
#268Cascoon
#268Cascoon
#273Seedot
#274Nuzleaf
#275Shiftry
#290Nincada
#291Ninjask
#292Shedinja
#299Nosepass
#304Aron
#305Lairon
#305Lairon
#306Aggron
#306Aggron
#337Lunatone
#338Solrock
#341Corphish
#342Crawdaunt
#342Crawdaunt
#343Baltoy
#344Claydol
#344Claydol
#347Anorith
#348Armaldo
#348Armaldo
#369Relicanth

Pokémon That Learn Harden By Level Up in Fire Red/Leaf Green:

No. Pic Name Type 1 Type 2
#011Metapod
#011Metapod
#014Kakuna
#014Kakuna
#088Grimer
#089Muk
#089Muk
#095Onix
#098Krabby
#099Kingler
#099Kingler
#120Staryu
#127Pinsir
#140Kabuto
#141Kabutops
#207Gligar
#208Steelix
#211Qwilfish
#218Slugma
#219Magcargo
#222Corsola
#266Silcoon
#266Silcoon
#268Cascoon
#268Cascoon
#273Seedot
#274Nuzleaf
#275Shiftry
#290Nincada
#291Ninjask
#292Shedinja
#299Nosepass
#304Aron
#305Lairon
#305Lairon
#306Aggron
#306Aggron
#337Lunatone
#338Solrock
#341Corphish
#342Crawdaunt
#342Crawdaunt
#343Baltoy
#344Claydol
#344Claydol
#347Anorith
#348Armaldo
#348Armaldo
#369Relicanth

Pokémon That Learn Harden By Breeding:

No. Pic Name Type 1 Type 2
#214Heracross

Pokémon That Learn Harden By Purifying or A Special Way:

No. Pic Name Type 1 Type 2