Right, I've had no time to play RU recently and this set has been an idea that's not been getting the game time it deserves so hopefully someone can play with it a bit:
Altaria (F) @ Leftovers
Name: FukULilliFukUUUU!!!!
Trait: Natural Cure
EVs: 252 HP / 36 Def / 220 SDef
Calm Nature (+SDef, -Atk)
- DragonBreath
- Roar
- Rest
- Sleep Talk
Altaria has always been a good (if somewhat unspectacular) special wall. When Lilligant, and to a small extent Sun teams, became popular with the introduction of the new RU I searched for a solution that could offer reliable cover as well as supporting the team and being annoying as fuck (three conditions that I always look for whenever I pick a Pokemon for a team).
The thinking behind this set is much the same as when I stumbled across Munchlax all the way back in early RU. DragonBreath threatens with Paralysis, Roar fucks with everything, while Rest + Sleep Talk keeps Altaria going on and on. What makes this a touch more elegant is that Natural Cure wakes Altaria up upon switching out, a very handy solution to the problem of being out-predicted while sleeping and never getting the chance to wake up.
It is a pretty good answer to Lilligant since it can switch in on any move and threaten it with Paralysis or phazing, although Lilligant carrying HP [Rock] will hurt at +1. Fire and Grass types in general will have a rough time because not many carry a move that can significantly damage Altaria; another factor is that not many people expect an Altaria to be able to retaliate after they have just been silenced by Sleep Powder. Overall is a pretty fun set to use, slightly gimmicky but so was Munchlax back when nobody knew about RestTalk. I feel that this set will be less effective once more people know about it but for now I think it's got some potential as an alternative answer to the many hipster sweepers that are gaining popularity: namely CM Entei, SD Samurott, BU Gallade and QD Lilligant.
Hell Gallade and Lilligant aren't even hip anymore they're mainstream...