Best Locations to EV Attack Train
The best place to EV Attack Train would be on Route 1. If you walk through the grass, there is a 100% of a Lillipup or Patrat appearing. They aren't any threat, being Levels 2-4. You will receive 1 EV Attack Point for every Lillipup or Patrat you defeat. That's 2 EV Attack Points if your Pokemon has Pokerus.
If you Pokemon is at higher level, try training in Basement Floor 2 of Relic Castle. There is a 50% of Krokorok appearing. These Krokoroks will be between Level 34-37. You will receive 2 EV Attack Points for every Krokorok you defeat. That's 4 EV Attack Points if your Pokemon has Pokerus.
Added by: Warrior13 May 3rd 2012, ID#16865