Cuuute . . . . Doesn't he look soft and cuddly? Yeah . . . Let's pause a moment to look at it.
Anyway, Dunsparce, though UU, can be a useful Pokemon in the fact that it is very annoying. For the opponent, that is. For one thing, Serene Grace is absolutely godly. And Dunsparce is definately the best
Dunsparce @ Leftovers
144 HP / 252 Atk / 36 Def / 76 SpD
~ Thunder Wave
~ Rock Slide
First off, the odd EV arrangement maximizes Dunsparce's mediocre defenses and his surviveability. Anyway, this set is one that can have opponents pulling their hair out. First, use TWave. Then, you are faster and are free to attack. With the 25% change of paralysis working, as well as the 60% chance of flinch (due to the moves), the opponent only has a 30% chance of even attacking. In the meantime, Dunsparce is free to recover health as well. (Although you should use the King's Rock/Razor Fang if they are allowed, as another 10% chance of flinch is great.) Plus, this set also gives (somewhat) good type coverage, too! Finally, all of Dunsparce's good counters can be paralyzed (except Hitmonlee, but he usually has Reckless), meaning you can flinch stall them too. Isn't that fantastic?
Oh, and if you feel lucky use Body Slam instead of TWave, it can paralyze and also provides STAB.
Ballom's Rating: 5/5! It may not be the best, but is feakin' annoying and sooo cute. Get one, okay?