Generation Iii
Pressure
Raises foe’s PP usage.
Detailed Effect
Moves targetting this Pokémon use one extra PP. This ability stacks if multiple targets have it. This ability still affects moves that fail or miss. This ability does not affect ally moves that target either the entire field or just its side, nor this Pokémon's self-targetted moves; it does, however, affect single-targetted ally moves aimed at this Pokémon, ally moves that target all other Pokémon, and opponents' moves that target the entire field. If this ability raises a move's PP cost above its remaining PP, it will use all remaining PP. When this Pokémon enters battle, all participating trainers are notified that it has this ability. Overworld: If the lead Pokémon has this ability, higher-levelled Pokémon have their encounter rate increased.
Pokémon With Pressure
36 canonical Pokémon forms can have this Ability.
Regular Ability 31 Pokémon
Aerodactyl
Articuno
Zapdos 
Moltres
Mewtwo
Raikou
#0244
Entei
Suicune
#0249
Lugia
Ho Oh
Dusclops
Absol
Deoxys Normal
Vespiquen
Spiritomb
Weavile
Dusknoir
Dialga
Palkia 
Giratina Altered
Kyurem
Corviknight
Eternatus
Sneasler 
Deoxys Attack
Deoxys Defense
Deoxys Speed
Eternatus Eternamax
Corviknight Gmax
Dialga Origin
Palkia Origin 

Wailmer
Wailord
Pawniard
Bisharp
Kingambit