A Pokémon with the Solid Rock Ability doesn't take as much damage from a Super-Effective move, receiving a 25% reduction in damage from a move that is Super Effective.
In the fourth generation, a Pokémon with Solid Rock would only take half the damage from a Super Effective attack than it would normally.
Solid Rock doesn't have an effect in the overworld.
Pokémon With Solid Rock
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