No. Shuckle has like, no offenses. Wrap is going to do next to no damage on the opponent. And don't replace Rest for anything. Shuckle has amazing defenses, and Rest just heals that HP bar. Unless this is a Sandstorm team, replace Sandstorm for Stealth Rocks, unless you already have a hazards setter. Or have Power Split to give your opponent's Pokemon insanely low attack stats. If you give it Power Split, then have Earthquake, Gyro Ball or Rock Slide as your attacking move.
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Shuckle @ Leftovers
Trait: Sturdy
EVs: 252 HP / 8 def / 148 SpD
Impish Nature (+Def, -SpA)
- Rest
- Toxic
- Stealth Rocks
- Double Team
Keep in mind that Double Team is banned in competitive play, though I'm pretty sure it's allowed in WiFi. the rest is self-explanatory.
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Or try this Shuckle set, which takes advantage of Sandstorm.
Shuckle @ Leftovers
Trait: Sturdy
EVs: 252 HP / 132 Def / 124 SpD
Careful Nature (+SpD, -SpA)
- Rest
- Toxic
- Sandstorm
- Double Team
Sandstorm to do damamge to other foes while Shuckle is safe and sound. You could swap Double Team for Mud Slap, so you do damage to them and lower their accuracy, but keep in mind that they can just switch out.
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Hope This Helped :D
