Shell Armor is an ability introduced in Generation III. So far, 2 Pokémon have this ability.
Shell Armor prevents the Pokémon from receiving a critical hit. It shares this effect with Battle Armor.
Outside of battle
Shell Armor has no effect outside of battle.
Pokémon with Shell Armor
|#||Pokémon||Types||First Ability||Second Ability||Hidden Ability|
|Barcush||Water||Water Veil||Shell Armor||None|
|Gysteam||Water||Fire||White Smoke||Shell Armor||None|