Unburden

Doubles Speed upon using or losing a held item.

When this Pokémon uses or loses its held item, its Speed is doubled. If it gains another item or leaves battle, this bonus is lost. This includes when the Pokémon drops its item because of knock off. This bonus does not count as a stat modifier. There is no notification when this ability takes effect.

17 Pokémon have this ability

#106

Hitmonlee

FightingKanto

#252

Treecko

GrassHoenn

#253

Grovyle

GrassHoenn

#254

Sceptile

GrassHoenn

#425

Drifloon

GhostFlyingSinnoh

#426

Drifblim

GhostFlyingSinnoh

#509

Purrloin

DarkUnova

#510

Liepard

DarkUnova

#617

Accelgor

BugUnova

#684

Swirlix

FairyKalos

#685

Slurpuff

FairyKalos

#701

Hawlucha

FightingFlyingKalos

#827

Nickit

DarkGalar

#828

Thievul

DarkGalar

#903

Sneasler

FightingPoisonGalar

#944

Shroodle

PoisonNormalPaldea

#945

Grafaiai

PoisonNormalPaldea