Description, catalog fields, rules text, and how it plays—in one place.
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No rules listed.
As it grows, the stone portions of its body harden to become similar to a diamond, though colored black.
Abilities, attacks, weakness & resistance
No abilities listed.
During your 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.)
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Onix (56/102, Unlimited) is a Basic Fighting-type Pokémon from the Base expansion. It has Rock Throw for 10 damage for one Fighting Energy and Harden for two Fighting Energy, which can prevent up to 30 damage during the opponent's next turn. The card has a retreat cost of three Colorless and flavor text noting its stone segments harden into diamond-like material.
Catalog pricing data as of 14 Apr 2026, 13:33