Togetic

Togetic is one of the few Pokemon who can pass Nasty Plot in UU, the others being Ambipom, Hypno, Minun, Mr. Mime, and Plusle. You may be asking yourself: "What does this NFE Pokemon have that makes it so special?" The main answer is Roost. With Roost, Togetic is able to set up on weaker opponents such as Chansey and pass boosts to its teammates with ease. Its decent defenses also help it set up, especially because its HP isn't too impressive. Togetic also has a variety of other support moves which include Wish, Encore, Heal Bell, Yawn, and many more. Togetic only has three weaknesses as well, which are all easily covered by Lanturn, Magneton, or even Registeel. Unfortunately, Togetic is cursed with a weakness to Stealth Rock, and outside of Baton Pass, it isn't useful for much else.