Scizor is an extremely powerful Pokemon. In-game is basically OU, so Scizor will rock the house. Its decent bulk combined with its huge Attack stat, and Technician Bullet Punch will all show you its power.
Scizor @ Choice Band
EVs: 252 HP, 252 Atk, 4 Spd
Moves: Bullet Punch, U-Turn, Pursuit, HM move.