Might as well post my Stealth Rock set...
Mamoswine @ Focus Sash
Trait: Thick Fat
EVs: 252 Atk / 252Spd / 4 Def
- Ice Shard
- Stealth Rock
Mamoswine can keep its sash intact fairly easy as long as hazards are kept off the field and also because it is immune to both weather damage from hail and sand.
Sash can guarentee you get rocks up, as well as ensure you live a hit to revenge things you can't ice shard.
Even without a boosting item, after SR you can OHKO Mence and Dnite (Dnite would need MS broken anyways). And those you don't OHKO without a bit of prior damage like thundurus and tornadus you can take one hit guarenteed with sash (Even with LO Tornadus-t is still only 2hkoed unless it has taken both SR and a round of recoil damage).
Now the fun part of having a sash is the ability to absolutely cripple some of your teams counters by using endeavor + ice shard combo (or hail/sand). It does require a fair bit of prediction, but you can checkmate stuff like scarf toed if they hit you down to sash and you used endeavor. Heck even rotom-w can be trolled by the end-shard combo if they use hydro pump instead of will-o-wisp.
This set really depends on your team however. Lack of Icicle Crash comes back a few times to annoy you, and the lack of power on Ice Shard needs to be planned for.