It does work, it doubles the amount of Ev's you obtain in every battle. Here, just read it's description. Macho Brace.
It works just like the description says it lowers your speed but, did you also notice that the pokemon holding the macho brace gets it stronger.
How to change your username How to add a user avatar Why was my post hidden? Question etiquette Flags vs Downvotes Anime FAQ Official PokemonDb League
Type a Pokemon name, type, move or ability to see instant results.