Fletchling @ Apicot Berry
Ability: Gale Wings
EVs: 196 Atk / 180 Spd / 92 Def
- Swords Dance
- Natural Gift
- Roost / U-turn
an interesting alternative to the standard sets, as with apicot berry it can get past both offensive chinchou by nailing it on the switch, and resttalk chou by using swords dance.
196+ Atk Apicot Berry Fletchling Natural Gift (100 BP Ground) vs. 0 HP / 52 Def Chinchou: 20-24 (83.3 - 100%) -- 56.3% chance to OHKO after Stealth Rock
+2 196+ Atk Apicot Berry Fletchling Natural Gift (100 BP Ground) vs. 76 HP / 212+ Def Chinchou: 32-38 (128 - 152%) -- guaranteed OHKO
except for this set, as it needs to outspeed chou, the proper EVs (as the other two answers don't have them) for physical fletch are 156 HP / 196 Atk / 92 Def / 64 SpD with an adamant nature, and the proper EVs for mixed are 156 HP / 200 Atk / 92 Def / 40 SpA with a naughty nature.