Smeargle@Focus Sash/Jolly/Technician
Ev 252 HP, 248 Spd, 8 Atk.
(this is just an outline)
Moves:
Taunt
Metal Burst
Bullet Punch
Destiny Bond
Strategy:
On leads slower than smeargle:
Taunt then d-bond to get rid of the opponents lead. Stops the annoying rocks/spikes etc.
On leads faster...