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Power Anklet
From Pixelmon Wiki
A Power Anklet is a type of power item that can be given to a Pokémon. When a Pokémon holding the Anklet defeats an opponent Pokémon, it will earn the normal EV gains from the opponent along with 8 extra Speed EVs. However, the Pokémon's Speed will be halved while wearing the anklet. When a breeding Pokémon holds a Power Anklet, its Speed IV is guaranteed to be passed to the offspring.
The power anklet can be obtained as a drop from rare tier bosses, found in pillager outpost chests, or as a tier 3 or 4 special drop.
