Sup Hackmons players here's a set I found really interesting whilst I was experimenting with a team built entirely around residual damage.
Aerodactyl @ Leftovers
Trait: Mold Breaker
EVs: 252 HP / 252 Atk / 252 Def / 252 SAtk / 252 SDef / 252 Spd
Timid Nature
- Spikes
- Substitute
- Whirlwind
- Spore
Mold Breaker Spore on something that fast is very hard to deal with. The only thing that can reliably shut down this set is magic coat, which often people find redundant when magic bounce is available. I chose Aerodactyl for it's speed and the fact it takes no damage from sandstorm, which I was using. Non sand teams looking to try this should probably use deoxys-s because it's just 2fast2handle.
http://pokemonshowdown.com/replay/hackmons-44418649
Here's one example of it in action taking down pretty much an entire team. Bit of a boring watch but w/e.
http://pokemonshowdown.com/replay/hackmons-44431767
This guy provides me with my favorite quotes of all time.
If anyone else has some cool sets, I'd love to see some.