Smeargle @ Life Orb
Adamant Nature,
252 HP / 252 Atk / 252 Spe
-Extremespeed
-Sheer Cold
-Recover
-Sketch
Fear the power of a Sweeping Smeargle(lol).Extremespeed OHKOs all 1st-evos which you will not encounter,and 8HKOs all 3rd-evos at Level 100.Sheer Cold helps you OHKO one pokemon,though its accuracy sucks.Recover helps you sweep better,with Smeargle's ''wonderful'' defenses.Sketch allows you to copy a move,most preferably a Scizor's Bullet Punch,if you dont get OHKOed by it.
or:
Smeargle @ Choice Band
Adamant,
252/252 spread
-Extremespeed
-Bullet Punch
-Mach Punch
-Sucker Punch
With the power of a Choice Band,Smeargle rips pokemon apart with his wonderful Attack of not exceeding 300.Arceus gets OHKOed by Mach Punch(sarcasm);as well as a Caterpie.Works very well in a 1v1 battle,where you use this and the opponent uses an Arceus.