WouW
Smash Lord
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#291 Ninjask
Bug/Flying
Speed Boost: Increases Speed by 1 stage at the end of each turn
61HP/90Atk/45Def/45SpA/50SpD/160Spe
Standard Baton Pass
Ninjask@Leftovers
Speed Boost/Jolly
252HP/252Spe/4atk
Swords Dance
Substitute
Baton Pass
X-Scissor
Switch this in, set up a Sub, and if your opponent breaks it, sub again, if not, use Swords Dance. Once you think you've got enough, Baton Pass to your physical sweeper; X-Scissor in case there is nothing to pass to.
Speed-passer
Ninjask @ Liechi/Petaya Berry
Speed Boost/Adamant
24Spe/252Atk/232HP
Protect
Substitute
Baton Pass
X-Scissor
Works well as a lead. Protect first turn, making you outspeed all trickscarfers (except for Trick Alakazam, but those never lead) and then you can safely Sub for Speed Boosts. Baton Pass if you have enough boosts. X-Scissor can screw up a number of leads, like Azelf and Tyranitar.
Choice Band
Ninjask@Choice Band
Speed Boost/Adamant
252Atk/252Spe/4Def
X-Scissor
Night Slash
Aerial Ace
U-Turn
Revenge killer. Switch in, kill foe or use U-Turn to get the hell out. No HP EVs allows you to switch twice if Stealth Rock is in play.
Sweeper
Ninjask@Liechi Berry
Speed Boost/Adamant
252Atk/252Spe/4HP
Swords Dance/Baton Pass
Substitute
X-Scissor
Aerial Ace
Ninjask greatly suffers from a bad physical movepool, and Steel-types will wall the hell out of it, but it might still work. Switch in to SR, Substitute and Liechi will activate, as well as Speed Boost. Swords Dance if you stay behind your sub and then just hit hard.
Baton Pass might replace Swords Dance if you think that Swords Dance wouldn't work anyway, and you want to be able to pass stuff.
Other options:
You could make a set with Thief to cripple Choice Users, or Shed Shell Skarmory. (Try the Choice Band set stealing the Choice Band from another, and watch your opponent scream WTF!?!?!! and laugh out loud. Or just don't try that as that likely won't work at all.)
EVs
High HP on the Substitute sets as you might even be able to pass those. 244 HP allows you to Sub three times and activate Liechi. 252 allows you to Sub four times, although I don't recommend you to do that in case of Sand Stream. Max speed makes you outspeed a lot of Salac/Swift Swim/Scarf users. For the Speed Passing set, 24 Speed EVs are used to outspeed all Trickscarfers after one Speed Boost.
Troublesome Pokémon:
Steel types wall the hell out of any offensive moves you have, and Skarmory in particular can just Whirlwind you away. With 61/45/50 defenses Ninjask easily dies, and Stealth Rock chips half off his health.
Written by WouW