Wacan Berry

The Wacan Berry is a berry introduced in Generation IV that weakens the power of super-effective -type moves. Pokemon like Gyarados are recomended to hold this berry while battling -type pokemon.

How to Obtain
Pokemon D/P/Plt: There is a girl in a house west of the Pastoria City Pokemart that will give you a rare berry once a day. Sometimes, you'll get a Wacan Berry.

Pokemon HG/SS: Sometimes your mom will buy 5 of this berry if you allow her to spend your money.