Pressure

Pressure makes any attack targeted at the ability-bearer - regardless of whether it hits - use 2 PP instead of 1.

Game descriptions

Ruby, Sapphire, FireRed, LeafGreen, Emerald:Raises foe’s PP usage.
Diamond, Pearl, Platinum, HeartGold, SoulSilver:The Pokémon raises the foe’s PP usage.
Black, White, Black 2, White 2:The Pokémon raises the foe’s PP usage.
X, Y, O.Ruby, A.Sapphire:The Pokémon raises opposing Pokémon’s PP usage.
Sun, Moon, Ultra Sun, Ultra Moon:By putting pressure on the opposing Pokémon, it raises their PP usage.
Sword, Shield, B.Diamond, S.Pearl:By putting pressure on the opposing Pokémon, it raises their PP usage.
Scarlet, Violet:Puts other Pokémon under pressure, causing them to expend more PP to use their moves.