Tactically and dangerous

Abomasnow (F) @ Choice Scarf
Trait: Snow Warning
EVs: 56 Atk / 200 SAtk / 252 Spd
Naive Nature (+Spd, -SDef)
- Blizzard
- Wood Hammer
- Hidden Power [Fire]
- Earthquake

Haxorus (M) @ Choice Band
Trait: Rivalry
EVs: 252 Atk / 4 Def / 252 Spd
Adamant Nature (+Atk, -SAtk)
- Outrage
- Dual Chop
- Earthquake
- Brick Break

Magnezone @ Leftovers
Trait: Magnet Pull
EVs: 152 HP / 180 SAtk / 176 Spd
Timid Nature (+Spd, -Atk)
- Substitute
- Charge Beam
- Thunderbolt
- Hidden Power [Fire]

Jirachi @ Leftovers
Trait: Serene Grace
EVs: 252 HP / 220 SDef / 36 Spd
Careful Nature (+SDef, -SAtk)
- Stealth Rock
- Wish
- Iron Head
- Body Slam

Dragonite (F) @ Leftovers
Trait: Multiscale
EVs: 252 Atk / 4 Def / 252 Spd
Adamant Nature (+Atk, -SAtk)
- Dragon Dance
- Outrage
- Earthquake
- Roost

Mamoswine (F) @ Life Orb
Trait: Snow Cloak
EVs: 252 Atk / 4 Def / 252 Spd
Adamant Nature (+Atk, -SAtk)
- Icicle Crash
- Ice Shard
- Earthquake
- Stone Edge