Credit to Blue_Star for putting this through QC, and writing Set Comments.
[SET]
name: FeatherDance
move 1: FeatherDance
move 2: Roost
move 3: Hidden Power Flying
move 4: Toxic
item: Eviolite
ability: Magic Bounce
nature: Timid
evs: 196 HP / 76 Def / 196 Spe
[SET COMMENTS]
<p>Natu can run an effective FeatherDance set in order to defeat common hazard users, such as Dwebble, without difficulty. Since the hermit crab fails to do over 65% with Stone Edge after a FeatherDance, Natu can simply stall it out with Roost. Ferroseed's Gyro Ball won't do over 26% after the attack drop either, and Tentacool's Scald can inflict a mere 40%. Those are the most powerful attacks that hazard users can use against Natu. Therefore, the Tiny Bird Pokemon will have an easier time against other hazard users. FeatherDance is also exceptionally useful against the multitude of Fighting-type Pokemon in the metagame, such as Timburr, Mienfoo, and Croagunk. After a FeatherDance, Timburr's Payback will do only a maximum of 60%, assuming Natu switches on a Bulk Up, and other weak attacks such as Mienfoo's Payback or Croagunk's Ice Punch will do even less. The only Fighting-type Pokemon this set cannot defeat is Scraggy, but it itself cannot defeat Natu if it switches into a FeatherDance. Additionally, Pursuit users such as Stunky and Munchlax have no hope at beating Natu. Stunky will do a meager 34% maximum after a FeatherDance, and if the Natu user successfully predicts a Crunch and switches out after lowering Stunky's attack, the skunk Pokemon is turned into setup fodder for another sweeper such as Shell Smash Omanyte or Dragon Dance Scraggy. Hidden Power Flying is a STAB move that is useful for chipping away at Ferroseed, Shelmet, and Fighting-type Pokemon, and Toxic cripples walls such as Lileep, Hippopotas, and Slowpoke, which can't do significant damage to the Natu.</p>
[ADDITIONAL COMMENTS]
<p>FeatherDance is the crux of the set, lowering the offensive abilities of opponents such as Scraggy, Ferroseed, and Dwebble, along with other Dark-type switch-ins. Toxic destroys walls such as Lileep, Munchlax, Hippopotas, and others. While U-turn isn't on the set, it can be used instead of Toxic for keeping or gaining momentum, scouting, or just to avoid Pokemon that will Pursuit Natu. Psychic and Hidden Power Flying are nice, powerful STABs, and have the added bonus of hitting the common Fighting-type Pokemon that roam the metagame. Psychic is a more powerful option in most cases, and OHKOes Gastly that switch in. Hidden Power Flying hits Pokemon Psychic can't, such as Scraggy. It can also hit Ferroseed neutrally, something Psychic can't boast. Hidden Power Fire can be used to 2HKO Ferroseed, and can also hit Magnemite hard. The EVs give Natu 23 HP, giving it one extra HP point when healing with Roost. The EVs also maximize Speed, giving it a boost when battling Pokemon such as Dwebble or Mienfoo. The Defense EVs give it balanced stats, giving it an extra point after the Eviolite bonus.</p>
<p>Magnemite and other Steel-types resist everything Natu runs, bar Hidden Power Fire. Magnemite is able to OHKO Natu with Thunderbolt, and other Steel-types can setup. Gastly can hit Natu hard, but it has to get in without being hit by Psychic. Chinchou can take anything Natu uses, and hurt it with Thunderbolt. It can even use Heal Bell to negate the effects of Toxic. Staryu works the same, shrugging off Toxic due to Natural Cure, and can take any attack Natu can throw at it, whittling it down with Thunderbolt or Ice Beam. Scraggy is a good partner for Natu, as it can tank hits from the Pokemon mentioned earlier, and Natu can counter Mienfoo, which is a huge burden for Scraggy. If a Chinchou is on the same team as Natu, both will benifit from one another. Chinchou can counter Magnemite and other Chinchou that switch into Natu, while Natu can deal with Chinchou's counters, such as Ferroseed and Lileep.</p>
[SET]
name: FeatherDance
move 1: FeatherDance
move 2: Roost
move 3: Hidden Power Flying
move 4: Toxic
item: Eviolite
ability: Magic Bounce
nature: Timid
evs: 196 HP / 76 Def / 196 Spe
[SET COMMENTS]
<p>Natu can run an effective FeatherDance set in order to defeat common hazard users, such as Dwebble, without difficulty. Since the hermit crab fails to do over 65% with Stone Edge after a FeatherDance, Natu can simply stall it out with Roost. Ferroseed's Gyro Ball won't do over 26% after the attack drop either, and Tentacool's Scald can inflict a mere 40%. Those are the most powerful attacks that hazard users can use against Natu. Therefore, the Tiny Bird Pokemon will have an easier time against other hazard users. FeatherDance is also exceptionally useful against the multitude of Fighting-type Pokemon in the metagame, such as Timburr, Mienfoo, and Croagunk. After a FeatherDance, Timburr's Payback will do only a maximum of 60%, assuming Natu switches on a Bulk Up, and other weak attacks such as Mienfoo's Payback or Croagunk's Ice Punch will do even less. The only Fighting-type Pokemon this set cannot defeat is Scraggy, but it itself cannot defeat Natu if it switches into a FeatherDance. Additionally, Pursuit users such as Stunky and Munchlax have no hope at beating Natu. Stunky will do a meager 34% maximum after a FeatherDance, and if the Natu user successfully predicts a Crunch and switches out after lowering Stunky's attack, the skunk Pokemon is turned into setup fodder for another sweeper such as Shell Smash Omanyte or Dragon Dance Scraggy. Hidden Power Flying is a STAB move that is useful for chipping away at Ferroseed, Shelmet, and Fighting-type Pokemon, and Toxic cripples walls such as Lileep, Hippopotas, and Slowpoke, which can't do significant damage to the Natu.</p>
[ADDITIONAL COMMENTS]
<p>FeatherDance is the crux of the set, lowering the offensive abilities of opponents such as Scraggy, Ferroseed, and Dwebble, along with other Dark-type switch-ins. Toxic destroys walls such as Lileep, Munchlax, Hippopotas, and others. While U-turn isn't on the set, it can be used instead of Toxic for keeping or gaining momentum, scouting, or just to avoid Pokemon that will Pursuit Natu. Psychic and Hidden Power Flying are nice, powerful STABs, and have the added bonus of hitting the common Fighting-type Pokemon that roam the metagame. Psychic is a more powerful option in most cases, and OHKOes Gastly that switch in. Hidden Power Flying hits Pokemon Psychic can't, such as Scraggy. It can also hit Ferroseed neutrally, something Psychic can't boast. Hidden Power Fire can be used to 2HKO Ferroseed, and can also hit Magnemite hard. The EVs give Natu 23 HP, giving it one extra HP point when healing with Roost. The EVs also maximize Speed, giving it a boost when battling Pokemon such as Dwebble or Mienfoo. The Defense EVs give it balanced stats, giving it an extra point after the Eviolite bonus.</p>
<p>Magnemite and other Steel-types resist everything Natu runs, bar Hidden Power Fire. Magnemite is able to OHKO Natu with Thunderbolt, and other Steel-types can setup. Gastly can hit Natu hard, but it has to get in without being hit by Psychic. Chinchou can take anything Natu uses, and hurt it with Thunderbolt. It can even use Heal Bell to negate the effects of Toxic. Staryu works the same, shrugging off Toxic due to Natural Cure, and can take any attack Natu can throw at it, whittling it down with Thunderbolt or Ice Beam. Scraggy is a good partner for Natu, as it can tank hits from the Pokemon mentioned earlier, and Natu can counter Mienfoo, which is a huge burden for Scraggy. If a Chinchou is on the same team as Natu, both will benifit from one another. Chinchou can counter Magnemite and other Chinchou that switch into Natu, while Natu can deal with Chinchou's counters, such as Ferroseed and Lileep.</p>
