Here are my 2 Pokemon for this strategy, the rest don't really matter unless you guys find a slight weakness.
Dugtrio: Max IV's on Atk and Speed. 252 EV's on Atk and speed. Nature: Jolly. Ability: Arena Trap
Durant: ability: Truant. Item: Focus Sash. Max IV's: speed. 252 EV's: Speed
the rest don't matter
So first, I start out with my durant. It will use Entrainment and with it's ability Truant, the opposing Pokemon will have the ability Truant. Then, I switch to Dugtrio, and because of Truant, My target will not move. Also, they can't switch out since Dugtrio has the ability arena trap. Next, I will use protect when the my target will attack and Hone Claws when my target can't move due to Truant. I will repeat this until Dugtrio has Maxed out its attack. Then, I can pretty much demolish any Pokemon in my way with maxed attack and I will probably win the battle since I don't think anything can outspeed my dugtrio. Are there any holes in my strategy?