Standard.Rain(with reg. Tornadus!)(S/M OU)

Swampert-Mega @ Swampertite
Ability: Torrent
Shiny: Yes
EVs: 252 Atk / 4 Def / 252 Spe
Adamant Nature
- Earthquake
- Waterfall
- Stealth Rock
- Ice Punch

Tornadus @ Life Orb
Ability: Prankster
EVs: 4 Atk / 252 SpA / 252 Spe
Hasty Nature
- Hurricane
- Rain Dance
- Focus Blast
- Knock Off

Pelipper @ Damp Rock
Ability: Drizzle
EVs: 248 HP / 32 Def / 228 SpD
Bold Nature
- Scald
- U-turn
- Roost
- Defog

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

Greninja-Ash @ Choice Specs
Ability: Battle Bond
EVs: 4 Def / 252 SpA / 252 Spe
Timid Nature
- Hydro Pump
- Dark Pulse
- Water Shuriken
- Ice Beam

Landorus-Therian @ Choice Scarf
Ability: Intimidate
EVs: 252 Atk / 4 Def / 252 Spe
Jolly Nature
- Earthquake
- U-turn
- Stone Edge
- Toxic