I guess I'll answer mainly because nobody else has.
Trubbish has apparently carved out an extremely small niche by being the best spikes setter with sticky hold, meaning it can spam recycle (yes, the trash Pokemon can learn recycle) and berry juice without having to worry about moves like knock off and switcheroo. This is the set.
Trubbish @ Berry Juice
Ability: Sticky Hold
EVs: 116 HP / 36 Atk / 100 Def / 20 SpD / 236 Spe
- Gunk Shot
- Drain Punch
Berry juice, sticky hold, spikes, and recycle were already explained. Gunk shot is its main STAB, and drain punch covers rock and steel and lets Trubbish check Pawniard. EVs maximize speed and physical bulk so it can take hits from stuff like Mienfoo.