Well, this is what I use:
Machoke @ Eviolite
Trait: No Guard / Guts
EVs: 252 Atk / 252 HP / 4 SDef
Adamant Nature
- Substitute
- Encore
- DynamicPunch
- Payback / Foresight (Yes, I use Foresight once. I regret but it's fun)
The good thing about Machoke is that everybody knows what he does, and just his presence creates an "I must switch to something to take out DynamicPunch / Ghost" Syndrome. This moment is perfect one to use Substitute. After Substitute, if the opponent switched to an offensive Psychic- / Ghost-type / Set-up sweepers like Altaria, you have a choice of using Payback to hit for great damage, of if it's something obvious like a Haunter (It'll either attack or set up Sub, or an Altaria / Sub user) just use Encore. The greatest thing is when opponent switches to a Musharna. Since it's probably unlikely that he knows Machoke's set (Unless he's a medium or saw this set), just use a Payback and wait. If it uses CM, use Encore. If it uses Psychic, then you can either Encore it (Risky, but it's a 2HKO unboosted). Then switch to Skuntank. Since Machoke behind a Sub and Payback does pitful damage against the tapir, Musharna will 95% of the times use CM unless it isn't a CM variant. I like to think it as a core with Skintank and something that can use Wish, probably Hypno or Gardevoir because they have good synergy and nice Special Defense.