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Scarf'd Machamp, +Spd nature and max spd/ATK IVs.
Dynamic punch, Edgequake, and (filler, usually fire punch).
Outspeeds most every common lead that aren't Galvantula/Aerodactyl and is bulky enough to generally eat anything they'll throw at him. Dynamic punch obliterates most things, stone edge handles Galvantula and the semi common Talonflame switch-in, and fire punch is nice for making forretress wish he was never born.
Even outspeeds some forms of Togekiss and can 2HKO with stone edge while only taking 88~96% damage from air slash IIRC; Albeit that was in Gen 5 when fairy moves weren't a concern and I've yet to get to match him against the newly fairy Togekiss.