Ice 'n Low.

Gengar @ Focus Sash
Ability: Levitate
EVs: 252 SpA / 4 SpD / 252 Spe
Timid Nature
- Shadow Ball
- Sludge Wave
- Icy Wind
- Taunt

Bisharp @ Life Orb
Ability: Defiant
EVs: 252 Atk / 4 SpD / 252 Spe
Jolly Nature
- Knock Off
- Sucker Punch
- Iron Head
- Low Kick

Pinsir-Mega @ Pinsirite
Ability: Aerilate
Happiness: 0
EVs: 252 Atk / 4 SpD / 252 Spe
Jolly Nature
- Frustration
- Earthquake
- Quick Attack
- Swords Dance

Slowbro @ Leftovers
Ability: Regenerator
EVs: 252 HP / 224 Def / 32 SpD
Bold Nature
- Scald
- Fire Blast
- Thunder Wave
- Slack Off

Ferrothorn @ Leftovers
Ability: Iron Barbs
EVs: 252 HP / 88 Def / 168 SpD
Relaxed Nature
IVs: 0 Spe
- Stealth Rock
- Power Whip
- Leech Seed
- Gyro Ball

Latias (F) @ Life Orb
Ability: Levitate
EVs: 252 SpA / 4 SpD / 252 Spe
Timid Nature
- Defog
- Draco Meteor
- Psyshock
- Healing Wish