@Chople Berry and Ability Pressure
I love this guy as a sweeper, but he needs a better moveset:
With Ice Punch and Foul Play being great moves already, STAB will power them up even more. Brick Break and Aerial Ace are coverage over Rock, Steel and Fighting types.
@White Herb and Ability Skill Link
Your basic Killer Cloyster set. Icircle Spear and Rock Blast Speak for them selfs. Razor Shell is for STAB. Shell Smash is for Stat Boosting.
I find Beartic a better sweeper than Articuno
@Choice Band and Ability Swift Swim(Since Snow Cloak is banned)
The reason why I gave it Rock Slide is because with Choice Band, Stone Edge can only hit 8 times and it dosen't have the best accaracy. Dive and Rock Slide is to kill fire types. Icircle Crash is for STAB. Brick Break is for a Rock type.
@Life Orb and Ability Thick Fat
With Life Orb this Pokemon is a beast. Ice Shard helps you to pick of weak foes. Stone Edge is for the power
Rotom is more for hax teams, so I put this guy instead.
@Leftovers and Ability Thick Fat
The reason why I put Walrein in is because he's part water type.(Screw you Dewgong) Sigal Beam is to cover grass and HP(Hidden Power) Ground is to get Electric types off your back.
@Occa Berry and ability Snow Warning
I plan on sending this one out first for hail. Focus Blast is for coverage againist Rock types. Giga Drain is for STAB and HP restoring. Water Pulse is to cover Fire types.
Well hope this helped:)