This is bulky offense

Metagross-Mega @ Metagrossite
Ability: Tough Claws
EVs: 252 Atk / 4 SpD / 252 Spe
Jolly Nature
- Meteor Mash
- Bullet Punch
- Ice Punch
- Thunder Punch

Tornadus-Therian @ Assault Vest
Ability: Regenerator
EVs: 248 HP / 8 SpD / 252 Spe
Timid Nature
- U-turn
- Hurricane
- Knock Off
- Heat Wave

Keldeo-Resolute @ Choice Scarf
Ability: Justified
EVs: 252 SpA / 4 SpD / 252 Spe
Timid Nature
IVs: 0 Atk
- Scald
- Secret Sword
- Hydro Pump
- Hidden Power [Electric]

Tangrowth @ Rocky Helmet
Ability: Regenerator
EVs: 248 HP / 212 Def / 48 SpD
Relaxed Nature
- Giga Drain
- Knock Off
- Sleep Powder
- Hidden Power [Ice]

Tapu Koko @ Life Orb
Ability: Electric Surge
EVs: 252 SpA / 4 SpD / 252 Spe
Timid Nature
- Thunderbolt
- Volt Switch
- Dazzling Gleam
- U-turn

Excadrill @ Leftovers
Ability: Mold Breaker
EVs: 252 HP / 4 Atk / 252 SpD
Careful Nature
- Rapid Spin
- Stealth Rock
- Earthquake
- Iron Head