#56Common
Onix
Pokemon · Basic90 HP
Fighting
Base Set
Market Prices
normal
$0.69
$0.20 – $19.08
Updated Jul 16, 2026
Attacks
Rock Throw
Harden
During opponent's next turn, whenever 30 or less damage is done to Onix (after applying Weakness and Resistance), prevent that damage. (Any other effects of attacks still happen.)
WEAKNESS
×2
RETREAT
As it grows, the stone portions of its body harden to become similar to a diamond, though colored black.