Here are a few Options:
- Banatte SW
It's quick with Shuppet CG, and needs no rare candy.
- Blissey MT
It's almost as fast, and has great damage out put.
- Empoleon DP
All though it is a stage 2, running a 4-4-3 line can be usefull.
- Lucario DP
Great damage spreader. Plus does nice damage to Blissey.
- Kricketune MT
A great T2er. Though TSD is used a lot.
- Magmortar SW
Again, the Lv.X can cause problems if you don't have it, but it does not need the Lv.X to work.
- Electrivire DP/SW
If you run 4 Elekid DP, 4 Electabuzz DF, 2 Electivire DP, and 2 Electivire SW, you should be good to go. It is also pretty quick.
- Venomoth SW
Yes, not widely played, but can have devastating effects, especially against Banatte and Gallade.
- Honchkrow, aka DWD
No Rare Candy needed, but gathering the Honchkrow Lv.X and Absol's can be tough on the wallet.
That is about all I got now. If you want more in depth explanations on something, just ask.