EVs: 252HP / 176Spd / 164 Def
Nature: Timid
~ Trick
~ Thunder Wave
~ Captivate
~ Flash
Start off by Tricking Choice Scarf to the opponent. Then Thunder Wave. Use Captivate if they are a special move. If they are using a physical move use flash. If they are using a non-attacking move, switch to Poliwrath/Regirock and set up. I am also thinking about using Memento on Gardevoir, is that a good move?
EVs: 252HP / 252Atk / 6Spd
Ability: Water Absorb
Nature: Adamant
~ Bulk Up
~ Substitute
~ Focus Punch
~ Ice Punch
Start Bulking Up or if they use a non-attacking move Substitute first. After 6 BulkUps you should be strong enough to sweep. Ice/Fighting has great coverage.
EVs: 252HP / 252SpD / 6Atk
Nature: Careful
~ Curse
~ Rest
~ Stone Edge
~ Hammer Arm
Curse up and then Rest then sweep with Stone Edge/Hammer Arm.
Main Strategy:
The idea of this team is to lock your opponent into an attack by Gardevoir Tricking Choice Scarf to them. Then continue to cripple them. Captivate has great synergy with my other Pokemon who use Curse. Captivate lowers their Special Attack while Curse increase your defence.