I actually made an NU team around Smash Pass a couple of weeks ago, and imo, Gorebyss is more threatening and better than Combusken as a passer. Gorebyss has access to Barrier and Amnesia in addition to Shell Smash, and you can directly pass that smash to Xatu to be almost indestructible. You can choose to pass to either a special or physical sweeper, which makes it much more versatile. Combusken is definitely a force too no doubt and has its own advantages nonetheless.
Gorebyss @ White Herb
Ability: Swift Swim
EVs: 252 HP / 4 SpD / 252 Spe
Timid Nature
IVs: 0 Atk
- Shell Smash
- Barrier
- Amnesia
- Baton Pass
The team formula was this:
1. Screens setter. Uxie is the best because it has Screens + Memento + Magic Coat, and SR too if you want/need. It also has excellent bulk and speed.
2. Gorebyss. Can sharply and rapidly boost every stat, has great bulk and a good typing and can also run attacking moves (like Surf and Ice Beam) and hit very hard with them (fucks Rhydon too as a bonus).
3. Xatu. Basically the NU version of Espeon. Renders phazing and status useless.
4. Togetic. A fairy type is needed to render Dragon Tail useless, Togetic is the best because it has great bulk, access to Stored Power, Recovery, etc.
5. Swoobat. An Unaware mon to render opposing set-up sweepers useless. Has Stored Power.
6. A Steel type. To render Clear Smog useless.
http://replay.pokemonshowdown.com/nubeta-142438367
http://replay.pokemonshowdown.com/nubeta-142456293
I didn't save any more higher up unfortunately, this is all I could find in history, but it damn near auto-wins against anything not prepared for it. BP FTW.