Power item

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Reason: Effect of Knock Off, Fling, and item-moving effects (such as Thief, Bestow, Symbiosis) on the EV-boosting effect

Power items are held items that award a Pokémon additional specific EVs whenever the Pokémon would normally earn EVs in battle, but halves Speed of the Pokémon while it holds the item. They all debuted in Generation IV.

Types of Power items

	Name	Corresponding stat
	Power Anklet	Speed
	Power Band	Special Defense
	Power Belt	Defense
	Power Bracer	Attack
	Power Lens	Special Attack
	Power Weight	HP

In the core series games

Mechanics

If a Pokémon holding a Power item gains experience from a battle, the Power item awards it additional EVs in a specific stat (in addition to the EVs it would normally earn). From Generation IV to VII, they grant 4 extra EVs; in Generation VIII, they grant 8 EVs. The EVs granted by Power items are doubled by the effect of Pokérus.

Additionally, any Pokémon holding a Power item has its Speed halved while it is holding the item.

From Pokémon HeartGold and SoulSilver onward, if either Pokémon in the Pokémon Day Care or Pokémon Nursery holds a Power item, that parent passes down its IV in that respective stat to Eggs it produces; HP for Power Weight, Attack for Power Bracer, and so on.

Acquisition

Power items are can normally be purchased with Battle Points at battle facilities.

In Pokémon Sun, Moon, Ultra Sun and Ultra Moon, they can be purchased with BP at the Battle Royal Dome, but not at the Battle Tree. In Pokémon Sword and Shield, they can be purchased from the BP Shop in Hammerlocke instead of the battle facility.

In Generation VI, all of the Power items could be obtained from the PokéMileage Club minigame Graffiti Eraser.

Artwork

These are artwork of the items as seen in the Pokémon Dream World.


Power Weight	Power Bracer	Power Belt

Power Lens	Power Band	Power Anklet

Trivia

These items, particularly the fact that they halve the holder's Speed, may have been inspired by the Macho Brace, an item introduced in Generation III that doubles all EVs a Pokémon gains but halves its Speed while held.