Unburden

Unburden is an ability introduced in Generation IV.

Effect

This ability doubles the Speed if the Pokémon's held item is used up or loses such item. This ability doesn't works if the Pokémon doesn't have an item at the beginning of the battle, and if it happens to have one the Pokémon will switch it with the moves Trick or Switcheroo with the rival.

Description

Generations	Description
Generation IV	Boosts the Speed stat if the Pokémon's held item is used or lost.
Generation V
Generation VI
Generation VII
Generation VIII
Generation IX

Pokémon

Pokémon		Type	First Ability	Second Ability	Hidden Ability
	Drifloon	Ghost /  Flying	Aftermath	Unburden	Flare Boost
	Drifblim	Ghost /  Flying	Aftermath	Unburden	Flare Boost
	Purrloin	Dark	Limber	Unburden	Prankster
	Liepard	Dark	Limber	Unburden	Prankster
	Hawlucha	Fighting /  Flying	Limber	Unburden	Mold Breaker
	Nickit	Dark	Run Away	Unburden	Stakeout
	Thievul	Dark	Run Away	Unburden	Stakeout
	Sneasler	Fighting /  Poison	Pressure	Unburden	Poison Touch
	Shroodle	Poison /  Normal	Unburden	Pickpocket	Prankster
	Grafaiai	Poison /  Normal	Unburden	Poison Touch	Prankster
	Hitmonlee	Fighting	Limber	Reckless	Unburden
	Treecko	Grass	Overgrow	—	Unburden
	Grovyle	Grass	Overgrow	—	Unburden
	Sceptile	Grass	Overgrow	—	Unburden
	Accelgor	Bug	Hydration	Sticky Hold	Unburden
	Swirlix	Fairy	Sweet Veil	—	Unburden
	Slurpuff	Fairy	Sweet Veil	—	Unburden