Board Thread:Trading/@comment-14639380-20140312142237/@comment-9380365-20140321152708

Honestly, A Gardevoir with calm mind is all you need for Chuck and ghost pokemon like Spiritomb and Gengar are useful too. For Jasmine strong fire types with Sunny Day  like Magmar can help, but don't set up the sun right away, Chuck's Poliwrath has Rain Dance. Also, use one or two fast pokemon that can make Chuck and Jasmine's Pokemon turn around like Aracnine with Roar/Agility, Luzray with Thunderwave/Roar, Butterfree with Whirlwind/Sleep Powder/ Quiver Dance, Dragonite with Dragon tail /Dragon Dance and even Charizard with Growl (it works most of the times)

I hope this helps!