(OM Pokebilities) Rain

Greninja @ Focus Sash
Ability: Battle Bond
EVs: 252 SpA / 4 SpD / 252 Spe
Timid Nature
- Ice Beam
- Dark Pulse
- Hydro Pump
- Spikes

Scrafty @ Leftovers
Ability: Shed Skin
EVs: 252 HP / 96 Atk / 60 SpD / 100 Spe
Jolly Nature
- Ice Punch
- Bulk Up
- Drain Punch
- Knock Off

Pelipper @ Damp Rock
Ability: Drizzle
EVs: 248 HP / 36 Def / 224 SpD
Bold Nature
- Scald
- Defog
- U-turn
- Roost

Ferrothorn @ Leftovers
Ability: Iron Barbs
EVs: 252 HP / 24 Def / 232 SpD
Sassy Nature
IVs: 0 Spe
- Protect
- Leech Seed
- Power Whip
- Gyro Ball

Swampert-Mega @ Swampertite
Ability: Swift Swim
EVs: 252 Atk / 4 SpD / 252 Spe
Adamant Nature
- Earthquake
- Waterfall
- Ice Punch
- Stealth Rock

Yanmega @ Buginium Z
Ability: Speed Boost
EVs: 252 SpA / 4 SpD / 252 Spe
Modest Nature
IVs: 0 Atk
- Bug Buzz
- Air Slash
- Protect
- Giga Drain