Pressure increases the opponent's PP usage by one when in battle. Additionally, when a Pokémon with Pressure enters the battle, a message broadcasting "<name> is exerting its Pressure!" will pop up before the battle menu appears. There are 14 Legendary/Mythical Pokémon with this ability and 5 Non-Legendary/Mythical Pokémon are with this ability.

Pokémon with this Ability

Pokémon Type
142MS Aerodactyl RockFlying
144MS Articuno IceFlying
145MS Zapdos ElectricFlying
146MS Moltres FireFlying
150MS Mewtwo Psychic
243MS Raikou Electric
244MS Entei Fire
245MS Suicune Water
250MS Ho-Oh FireFlying
356MS Dusclops Ghost
386MS Deoxys Psychic
386AMS Deoxys-A Psychic
386DMS Deoxys-D Psychic
386SMS Deoxys-S Psychic
442MS Spiritomb GhostDark
461MS Weavile DarkIce
477MS Dusknoir Ghost
483MS Dialga SteelDragon
484MS Palkia WaterDragon
487MS Giratina GhostDragon
646MS Kyurem DragonIce