"It's about to get FIDGETTY in here. Your ARMageddon shall continue!"
There are few Pokemon weak to Poison STAB. Sawsbuck is unfortunately one of them.
ARMageddon, lets start this off by Taunting our foe so he can't support his teammates. Follow up with successive Sludge Bombs.
If Sawsbuck tries to evade Taunt with a non-damaging evasive move, set another layer of Spikes, then move your actions back, this substitution is in effect if Sawsbuck uses both A1 and A2 to avoid Taunt.
Taunt ~ Sludge Bomb ~ Sludge Bomb
If Sawsbuck uses a non-damaging evasive move to avoid Taunt, set a layer of Spikes each time and push actions back.