Moveset Submission
Name: Physical attacker
Move 1: Flare Blitz
Move 2: Icicle Crash
Move 3: Ice Shard
Move 4: U-Turn
Ability: Magic Guard
Item: Life Orb / Focus Sash
EVs: 252 Atk / 252 Spe
Nature: Jolly
- Flare Blitz and Icicle Crash are the main STABs
- Ice Shard is a good priority
- U-Turn is perfect to gain momentum
- Life Orb raise the power of the moves, Focus Sash can guarantee a revenge kill
- Magic Guard removes the recoil from Life Orb and Flare Blitz and negate the Stealth Rock damage
Name: Special attacker
Move 1: Fire Blast / Inferno
Move 2: Ice Beam / Blizzard
Move 3: Frost Breath
Move 4: U-Turn
Ability: Magic Guard / No Guard
Item: Life Orb / Focus Sash
EVs: 252 SpA / 252 Spe
Nature: Timid
- Fire Blast and Ice Beam are the main STABs, Blizzard can be used with No Guard, Inferno can be used if you want to guarantee the burn at the little cost of less power
- Frost Breath could be useful against Calm Mind user
- U-Turn is perfect to gain momentum
- Life Orb raise the power of the moves, Focus Sash can guarantee a revenge kill
- Magic Guard removes the recoil from Life Orb and negate the Stealth Rock damage, No Guard guarantee perfect Fire Blast, Inferno and Blizzard
Name: Mixed attacker
Move 1: Flare Blitz
Move 2: Icicle Crash / Ice Shard
Move 3: Ice Beam / Blizzard
Move 4: U-Turn / Fire Blast / Inferno
Ability: Magic Guard / No Guard
Item: Life Orb / Focus Sash
EVs: 4 Atk / 252 Spa / 252 Spe
Nature: Hasty
- Flare Blitz and Icicle Crash are the main physical STABs, Ice Shard is a good priority
- Ice Beam is the Ice special STAB, Blizzard can be used with No Guard
- U-Turn is perfect to gain momentum, Fire can be used if you need of a Fire special STAB, Inferno can be used if you want to guarantee the burn at the little cost of less power
- Life Orb raise the power of the moves, Focus Sash can guarantee a revenge kill
- Magic Guard removes the recoil from Life Orb and Flare Blitz and negate the Stealth Rock damage, No Guard guarantee perfect Fire Blast, Inferno and Blizzard
- Hasty nature is to save the 70/80 special bulk
About coverage, I think we shouldn't add moves that can do serious damage to types that threat it (Fighting, Water, Ground and Rock)