Give rotom-wash a try! Helps with rain teams, the team's overall fire weakness and gives you some speed. At 200 speed timid to outrun everything that's not scarfed and can cripple chansey's by tricking your scarf.
Rotom-Wash @ Choice Scarf
Ability: Levitate
EVs: 252 SpA / 56 SpD / 200 Spe...