Hi, nerds.
This set didn't really work for me, but I still feel like it has potential. Maybe one of you can make use of it or something.
Scizor @ Life Orb
Trait: Technician
EVs: 148 HP / 252 Atk / 108 Spd
Adamant Nature
- Bullet Punch
- Quick Attack
- Superpower
- Swords Dance
It essentially is a standard offensive SD Scizor. Except with Quick Attack.
It
theoretically works for the same reason double priority Lucario does. Just like Bullet Punch does for Lucario Quick Attack fucks over a lot of Scizor's offsensive checks after a Swords Dance. At times the ability to revenge kill those exact Pokemon with less previous damage than the standard SD Scizor would need comes in handy as well.
Superpower and 108 Speed EVs allow Scizor to beat defensive Heatran, a more defensive EV spread and Bug Bite in place of Superpower can be used as well.
This set is obviously meant to be used as a dedicated lategame sweeper and /really/ appreciates entry hazard support and other kinds of residual damage.
Sample calcs:
252 Atk Life Orb Technician Scizor (+Atk) Quick Attack
vs 4 HP/0 Def Keldeo-R: 31,48% - 37,04% (3 hits to KO)
vs 4 HP/0 Def Rotom-W: 36,78% - 43,39% (3 hits to KO)
vs 4 HP/0 Def Starmie: 41,22% - 48,47% (3 hits to KO) (56,25% chance to OHKO at +2 after SR)
vs 4 HP/0 Def Politoed: 36,96% - 43,48% (3 hits to KO)
vs 4 HP/0 Def Volcarona: 42,63% - 50,32% (2 hits to KO) (6,25% chance to OHKO after SR)
Random unrelated replay:
http://www.pokemonshowdown.com/replay/ou-16369608 
