Gold/Silver  An attack that may lower Defense. Crystal  An attack that may lower Defense. Ruby/Sapphire  Sprays a hide-melting acid. May lower Defense. FireRed/LeafGreen  The foe is sprayed with a harsh, hide- melting acid that may lower Defense. Emerald  Sprays a hide-melting acid. May lower Defense. Diamond/Pearl  The foe is attacked with a spray of harsh acid. It may also lower the target's Sp. Def stat. HeartGold/SoulSilver  The foe is attacked with a spray of harsh acid. It may also lower the target's Sp. Def stat. Platinum  The foe is attacked with a spray of harsh acid. It may also lower the target's Sp. Def stat. X/Y  The opposing team is attacked with a spray of harsh acid. The acid may also lower the targets' Sp. Def stats. Scarlet/Violet  Opposing Pokémon are attacked with a spray of harsh acid. This may also lower their Sp. Def stats.