So, after reading up a bit on smogon, I quickly fell in love with a hail team. So, here it is:
Snover (M) @ Eviolite
Trait: Snow Warning
EVs: 220 HP/ 160 Atk/ 64 Def/ 64 SDef
Adamant Nature (+Atk, -SAtk)
-Grasswhistle
-Safeguard
-Wood Hammer
-Ice Shard
Cloyster (M) @ White Herb
Trait: Skill Link
EVs: 252 Atk/ 252 Spd/ 4 HP
Jolly Nature (+Atk, -SAtk)
-Shell Smash
-Icicle Spear
-Rock Blast
-Razor Shell
Mamoswine (M) @ Life Orb
Trait: Snow Cloak
EVs: 252 Atk/ 252 Spd/ 4 HP
Adamant Nature (+Atk, -SAtk)
-Ice Shard
-Icicle Crash
-Earthquake
-Stone Edge
Walrein (M) @ Leftovers
Trait: Ice Body
EVs: 232 HP/ 252 Def/ 24 SDef
-Protect
-Substitute
-Blizzard
-Toxic
Rotom-W (-) @ Choice Specs
Trait: Levitate
EVs: 4 HP/ 252 SAtk/ 252 Spd
-Thunderbolt
-Hydro Pump
-Hidden Power Fire
-Trick
Reuniclus
Snover (M) @ Eviolite
Trait: Snow Warning
EVs: 220 HP/ 160 Atk/ 64 Def/ 64 SDef
Adamant Nature (+Atk, -SAtk)
-Grasswhistle
-Safeguard
-Wood Hammer
-Ice Shard
Cloyster (M) @ White Herb
Trait: Skill Link
EVs: 252 Atk/ 252 Spd/ 4 HP
Jolly Nature (+Atk, -SAtk)
-Shell Smash
-Icicle Spear
-Rock Blast
-Razor Shell
Mamoswine (M) @ Life Orb
Trait: Snow Cloak
EVs: 252 Atk/ 252 Spd/ 4 HP
Adamant Nature (+Atk, -SAtk)
-Ice Shard
-Icicle Crash
-Earthquake
-Stone Edge
Walrein (M) @ Leftovers
Trait: Ice Body
EVs: 232 HP/ 252 Def/ 24 SDef
-Protect
-Substitute
-Blizzard
-Toxic
Rotom-W (-) @ Choice Specs
Trait: Levitate
EVs: 4 HP/ 252 SAtk/ 252 Spd
-Thunderbolt
-Hydro Pump
-Hidden Power Fire
-Trick
Reuniclus