Asked in Pokemon Diamond Pearl and Platinum
What does the ability Solid Rock do in Pokemon Pearl?
The ability Solid Rock reduces super effective damage. A normally super effective move (x2 damage) will deal 1.33x damage and a x4 super effective move will deal 2.66x damage.
Only two Pokemon have the ability Solid Rock: Camerupt (as a dual ability with Magma Armor) and Rhyperior (as a dual ability with Lightningrod)