Everyone seems to have their own thread for Battle Subway RMTs, so I'm going to post my team on here and try and keep the thread updated as I play my way through. So, without further ado here's my starting team:
1. Whimsicott (Prankster) @Focus Sash
EVs: HP 252; Def 6; Spd 252
2. Haxorus (Mold Breaker) @Lum Berry
EVs: HP 6; Atk 252; Spd 252
3. Scizor (Technician) @Leftovers
EVs: Atk 252; SDf 6; Spd 252
The idea is to priority Taunt the opponent's lead to stop them setting up, then use U-turn if the opponent's lead isn't an offensive threat, or Memento if it is. From there it's just a case of boosting up and sweeping. Simple.
Haxorus was originally holding a Life Orb for a bit of extra power, but having played through the first 7 trainers of the subway I decided the recoil was hurting me more than I was willing to accept, and traded out the orb for a Lum Berry.