Let's see, I have more than six Pokemon I use, but if I were to pick six for battling in Wi-Fi, I'd go with these ones:
Kisses (Shiny Abra) - Level 70; Timid Nature
Psychic
Shadow Ball
Energy Ball
Signal Beam
Ukkii (Absol) - Level 100; Adamant Nature
Stone Edge
Night Slash
Sucker Punch
Psycho Cut
Sitti (Shiny Togekiss) - Level 100; Modest Nature
Water Pulse
Air Slash
Thunder Wave
Roost
Tutti (Shiny Azumarill) - Level 100; Adamant Nature
Ice Punch
Brick Break
Waterfall
Dig (need something else)
Siren (Shiny Milotic) - Level 51; Bold Nature
Surf
Ice Beam
Toxic
Recover
Dimples (Dragonite) - Level 100; Adamant Nature
Dragon Claw
Dragon Dance
Earthquake
Brick Break (will replace with Fire Punch)
I've still got leveling to do. All those are properly EV trained, but don't have the best IVs. And yes...I actually use an Abra to fight. XD
Kisses (Shiny Abra) - Level 70; Timid Nature
Psychic
Shadow Ball
Energy Ball
Signal Beam
Ukkii (Absol) - Level 100; Adamant Nature
Stone Edge
Night Slash
Sucker Punch
Psycho Cut
Sitti (Shiny Togekiss) - Level 100; Modest Nature
Water Pulse
Air Slash
Thunder Wave
Roost
Tutti (Shiny Azumarill) - Level 100; Adamant Nature
Ice Punch
Brick Break
Waterfall
Dig (need something else)
Siren (Shiny Milotic) - Level 51; Bold Nature
Surf
Ice Beam
Toxic
Recover
Dimples (Dragonite) - Level 100; Adamant Nature
Dragon Claw
Dragon Dance
Earthquake
Brick Break (will replace with Fire Punch)
I've still got leveling to do. All those are properly EV trained, but don't have the best IVs. And yes...I actually use an Abra to fight. XD