Poison Gas

Acid Armor (どくガス, Poison Gas) is a non-damaging Poison-type move introduced in Gen I.

Gen I to IV
Poison Gas poisons the target and has an accuracy of 55%. Poison Gas targets only one Pokémon in Double Battles.

Gen V
Poison Gas's accuracy is increased to 80% and now targets all adjacent opponents in Double and Triple Battles.

Since Gen VI
Poison Gas's accuracy changed from 80% to 90%. Poison Gas can also be used as part of a Contest Spectacular combination, causing Hex, Venom Drench and Venoshock to give an extra three appeal points if used in the next turn. If powered up by a Poisonium Z into Z-Poison Gas, the user's Defense stat rises by one stage.