BrightPowder can only be purchased from the item seller at the southwestern Exchange Service Corner kiosk in the Battle Frontier. Each BrightPowder costs 48 BP, and this is the only way to acquire the item in Pokémon Platinum.
The BrightPowder is a Hold Item that shines a glare into an opposing Pokémon’s eyes, lowering the accuracy of their moves by 10%.
BrightPowder can only be found in the Battle Frontier, which is only available in the post-game after you beat the E4.
When you’re at the Pokémon Center in the Battle Zone’s Fight Area, just look for the huge building with the red awning nearby.
After entering this building, continue through the Entrance Hall and enter the door up at the northern wall.
In the middle of the Main Hall will be several kiosks making up a central marketplace. This is the Exchange Service Corner.
Speak to the clerk at the lower left kiosk (the one with the blue and white striped canopy).
Scroll through her inventory until you find the BrightPowder listing.
Each BrightPowder costs 48 Battle Points (BP). You’ll be able to win BP by fighting in the Battle Frontier’s various facilities.
BrightPowder Details & Uses
The BrightPowder shines a glare into the eyes of an opposing Pokémon, lowering the accuracy of moves targeting the holder by 10%.
While 10% might not seem like much, 10% off the accuracy of every single attack does add up.
BrightPowders can also be given to Pokémon with evasion-boosting Abilities, like Sand Veil or Snow Cloak (both of which use weather effects to increase the Pokémon’s evasion by 20%). This is one way to stack effects to make your Pokémon even harder to hit.
If the Pokémon also has an evasion-raising move like Double Team or Minimize, then in a single turn it could drop its odds of being hit by any given attack to under 50%.
Miscellaneous Info about BrightPowder
- If a BrightPowder is flung by a Pokémon using Fling, it will have a base power of 10.
- A BrightPowder can be resold for only 5 PokéDollars. Although this is not recommended due to the initial costliness of the item and the poor resale value.